{"id":14741,"date":"2025-12-24T17:22:58","date_gmt":"2025-12-24T08:22:58","guid":{"rendered":"https:\/\/math-travel.com\/?p=14741"},"modified":"2026-03-06T01:10:32","modified_gmt":"2026-03-05T16:10:32","slug":"vector-parallel","status":"publish","type":"post","link":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/","title":{"rendered":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc"},"content":{"rendered":"\n
\u4eca\u56de\u89e3\u6c7a\u3059\u308b\u60a9\u307f<\/span><\/div>
\n

\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u3063\u3066\u306a\u306b\uff1f\u300d
\u300c\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u3069\u3046\u8868\u3059\u306e\uff1f\u300d<\/p>\n<\/div><\/div>\n\n\n\n

\u4eca\u56de\u306f\u6570\u5b66B\u306e\u30d9\u30af\u30c8\u30eb\u304b\u3089\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u300d<\/span>\u306b\u95a2\u3059\u308b\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

2\u3064\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306e\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6<\/span><\/div>
\n

\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/p>\n\n\n\n

0\u3067\u306f\u306a\u30442\u3064\u306e\u30d9\u30af\u30c8\u30eb\\(\\vec{a}=(x_{1},y_{1}),\\vec{b}=(x_{2},y_{2})\\)\u304c\u3042\u308b\u3068\u304d\u3001\u5b9f\u6570\\(k\\)\u3092\u7528\u3044\u3066<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a} \\cdots\u2460\\]<\/p>\n\n\n\n

\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n

\u307e\u305f\u3001<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0 \\cdots\u2461\\]<\/p>\n\n\n\n

\u3082\u6210\u308a\u7acb\u3064\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306a\u3089\u3070\u3001\u5927\u304d\u3055\u304c\u540c\u3058\u306b\u306a\u308b\u3088\u3046\u306b\\(k\\)\u500d\u3057\u3066\u8abf\u6574\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n

\u4eca\u56de\u306f\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6<\/span>\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u5e73\u884c\u6761\u4ef6\u306e\u8a3c\u660e\u3084\u7df4\u7fd2\u554f\u984c\u306e\u7d39\u4ecb\u306a\u3069\u3001\u76db\u308a\u3060\u304f\u3055\u3093\u306a\u304c\u3089\u3082\u5206\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u3001\u7406\u89e3\u3092\u6df1\u3081\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n\n\n\n

\u305d\u308c\u3067\u306f\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6<\/h2>\n\n\n
\n
\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/figure>\n<\/div>\n\n\n

0\u3067\u306f\u306a\u30442\u3064\u306e\u30d9\u30af\u30c8\u30eb\\(\\vec{a}=(x_{1},y_{1}),\\vec{b}=(x_{2},y_{2})\\)\u304c\u3042\u308b\u3068\u304d\u3001\u5b9f\u6570\\(k\\)\u3092\u7528\u3044\u3066<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a} \\cdots\u2460\\]<\/p>\n\n\n\n

\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n

\u307e\u305f\u3001<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0 \\cdots\u2461\\]<\/p>\n\n\n\n

\u3082\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n

\u3053\u3053\u3067\u3001\\(k\\)\u306e\u5024\u304c0\u3088\u308a\u5927\u304d\u3044\u3068\u304d\u306f\u3001\\(\\vec{a}\\)\u3068\\(\\vec{b}\\)\u306f\u540c\u3058\u5411\u304d\u306b\u5e73\u884c\u3002<\/span>
\\(k\\)\u306e\u5024\u304c0\u3088\u308a\u5c0f\u3055\u3044\u3068\u304d\u306f\u3001\\(\\vec{a}\\)\u3068\\(\\vec{b}\\)\u306f\u9006\u5411\u304d\u306b\u5e73\u884c<\/span>\u3067\u3059\u3002<\/p>\n\n\n\n

\u5e73\u884c\u6761\u4ef6\u306e\u8a3c\u660e<\/h2>\n\n\n\n

\u5148\u307b\u3069\u7d39\u4ecb\u3057\u305f\u5e73\u884c\u6761\u4ef6\u306b\u3064\u3044\u3066\u3001\u8a3c\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u307e\u305a\u306f\u3001\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3092\u5fa9\u7fd2\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/p>\n\n\n\n

0\u3067\u306f\u306a\u30442\u3064\u306e\u30d9\u30af\u30c8\u30eb\\(\\vec{a}=(x_{1},y_{1}),\\vec{b}=(x_{2},y_{2})\\)\u304c\u3042\u308b\u3068\u304d\u3001\u5b9f\u6570\\(k\\)\u3092\u7528\u3044\u3066<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a} \\cdots\u2460\\]<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0 \\cdots\u2461\\]<\/p>\n\n\n\n

\u307e\u305a\u3001\\(\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a}\u2026\u2460\\)\u3092\u8a3c\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\\(\\vec{a} \/\/\\vec{b} \\rightarrow \\vec{b}=k\\vec{a}\\)\u304b\u3089\u8a3c\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\uff12\u3064\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u30d9\u30af\u30c8\u30eb\u540c\u58eb\u306e\u5411\u304d\u304c\u540c\u3058\u3067\u5927\u304d\u3055\u304c\u7570\u306a\u308b\u304b\u3001\u30d9\u30af\u30c8\u30eb\u540c\u58eb\u306e\u5411\u304d\u304c\u53cd\u5bfe\u3067\u5927\u304d\u3055\u304c\u7570\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3002<\/p>\n\n\n\n

\u3088\u3063\u3066\u3001\u5b9f\u6570k\u3092\u7528\u3044\u3066\u3001\\(\\vec{b}=k\\vec{a}\\)\u3068\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n\n\n\n

\u6b21\u306b\\(\\vec{b}=k\\vec{a} \\rightarrow \\vec{a} \/\/\\vec{b}\\)\u3092\u8a3c\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u5b9f\u6570\\(k\\)\u3092\u7528\u3044\u3066\u3001\\(\\vec{b}=k\\vec{a}\\)\u3068\u8868\u305b\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\\(\\vec{a}\\)\u3068\\(\\vec{b}\\)\u306e\u5411\u304d\u304c\u540c\u3058\u304b\u53cd\u5bfe\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n\n\n\n

\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/p>\n\n\n\n

\u3088\u3063\u3066\u3053\u306e\u5834\u5408\u3001\\(\\vec{a}\/\/\\vec{b}\\)\u3067\u3042\u308b\u3002<\/p>\n\n\n\n

\u4ee5\u4e0a\u3088\u308a\u3001\\(\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a}\\)<\/p>\n\n\n\n

\u6b21\u306b\u3001\\(\\vec{b}=k\\vec{a} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0\u2026\u2461\\)\u3092\u8a3c\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\\(\\vec{b}=k\\vec{a} \\rightarrow x_{1}y_{2}-x_{2}y_{1}=0\\)\u3092\u8a3c\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u4eca\u3001\\(\\vec{a}=(x_{1},y_{1}),\\vec{b}=(x_{2},y_{2})\\)\u3067\u3042\u308a\u3001\\(\\vec{b}=k\\vec{a}\\)\u3068\u306a\u308b\u5b9f\u6570k\u304c\u3042\u308b\u3068\u304d\u3001<\/p>\n\n\n\n

\\begin{eqnarray}
(x_{2},y_{2})&=&k(x_{1},y_{1})\\\\
(x_{2},y_{2})&=&(kx_{1},ky_{1})
\\end{eqnarray}<\/p>\n\n\n\n

\u3053\u3053\u3067\u3001\u6bd4\u3092\u8003\u3048\u308b\u3002<\/p>\n\n\n\n

\\begin{eqnarray}
x_{2}:y_{2}=kx_{1}:ky_{1} &\\Leftrightarrow& x_{2}:y_{2}=x_{1}:y_{1}\\\\
&\\Leftrightarrow& x_{1}y_{2}-x_{2}y_{1}=0
\\end{eqnarray}<\/p>\n\n\n\n

\\(x_{1}y_{2}-x_{2}y_{1}=0 \\rightarrow \\vec{b}=k\\vec{a}\\)\u3092\u8a3c\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\\begin{eqnarray}
x_{1}y_{2}-x_{2}y_{1}=0 &\\Leftrightarrow& x_{2}:y_{2}=x_{1}:y_{1}\\\\
&\\Leftrightarrow& x_{2}:y_{2}=kx_{1}:ky_{1}
\\end{eqnarray}<\/p>\n\n\n\n

\u3053\u308c\u306f\u3001\\(\\vec{b}\\)\u304c\\(\\vec{a}\\)\u306ek\u500d\uff08k\u306f\u5b9f\u6570\uff09\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u306e\u3067\u3001\\(\\vec{b}=k\\vec{a}\\)\u3068\u306a\u308b\u5b9f\u6570k\u304c\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3082\u3042\u308b\u3002<\/p>\n\n\n\n

\u4ee5\u4e0a\u3088\u308a\u3001\\(\\vec{b}=k\\vec{a} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0\u2026\u2461\\)<\/p>\n\n\n\n

a\u30d9\u30af\u30c8\u30eb\u306b\u5e73\u884c\u306a\u5358\u4f4d\u30d9\u30af\u30c8\u30eb<\/h2>\n\n\n\n

\u3053\u3053\u304b\u3089\u306f\u5e73\u884c\u306a\u5358\u4f4d\u30d9\u30af\u30c8\u30eb<\/span>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/span><\/p>\n\n\n\n

\u57fa\u790e\u554f\u984c\u3068\u3057\u3066\u30c6\u30b9\u30c8\u306a\u3069\u3067\u51fa\u984c\u3055\u308c\u307e\u3059\u3002\u3088\u304f\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\u307e\u305a\u306f\u3001\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u306b\u3064\u3044\u3066\u5fa9\u7fd2\u3057\u307e\u3057\u3087\u3046\u3002
\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u3068\u306f\u3001\u5927\u304d\u3055\u304c1\u306e\u30d9\u30af\u30c8\u30eb\u3067\u3059\u3002<\/span><\/p>\n\n\n

\n
\"\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\"<\/figure>\n<\/div>\n\n\n

\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u306e\u5b9a\u7fa9\u3092\u304a\u3055\u3048\u306a\u304c\u3089\u3001\u4f8b\u984c\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u4f8b\u984c<\/span><\/div>
\n

\\(\\vec{a}=(2,-1)\\)\u306b\u5e73\u884c\u306a\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\\(\\vec{t}\\)\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\u6c42\u3081\u305f\u3044\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u3092\\(\\vec{t}=(x,y)\\)\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u3067\u3059\u306e\u3067\\(|\\vec{t}|=1\\)\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001<\/p>\n\n\n\n

\\[x^{2}+y^{2}=1\\]<\/p>\n\n\n\n

\u307e\u305f\u3001<\/p>\n\n\n\n

\\begin{eqnarray}
x_{1}y_{2}-x_{2}y_{1}&=&0\\\\
2\\times y-x\\times\\left(-1\\right)&=&0\\\\
2y+x&=&0\\\\
x&=&-2y
\\end{eqnarray}<\/p>\n\n\n\n

\u5148\u307b\u3069\u306e\u3001\\(x^{2}+y^{2}=1\\)\u3092\u4f7f\u3063\u3066\u3001<\/p>\n\n\n\n

\\begin{eqnarray}
(-2y)^{2}+y^{2}&=&1\\\\
5y^{2}&=&1\\\\
y^{2}&=&\\frac{1}{5}\\\\
\\displaystyle y&=&\\pm \\frac{1}{\\sqrt5}\\\\
\\displaystyle y&=&\\pm \\frac{\\sqrt5}{5}
\\end{eqnarray}<\/p>\n\n\n\n

\u3088\u3063\u3066\u3001\u6c42\u3081\u308b\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u306f\u3001<\/p>\n\n\n\n

\\(\\displaystyle \\vec{t}=(-\\frac{2\\sqrt5}{5},\\frac{\\sqrt5}{5}),(\\frac{2\\sqrt5}{5},-\\frac{\\sqrt5}{5})\\)<\/span><\/p>\n\n\n

\n
\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/figure>\n<\/div>\n\n\n

1\u3064\u306e\u30d9\u30af\u30c8\u30eb\u306b\u5bfe\u3057\u3066\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u306f2\u3064\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u4e21\u65b9\u3068\u3082\u7b54\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u5e73\u884c\u6761\u4ef6\u3092\u7528\u3044\u305f\u7df4\u7fd2\u554f\u984c<\/h2>\n\n\n\n

\u3053\u3053\u304b\u3089\u306f\u3001\u5e73\u884c\u6761\u4ef6\u3092\u7d61\u3081\u305f\u30d9\u30af\u30c8\u30eb\u306e\u7df4\u7fd2\u554f\u984c\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002
\u3067\u304d\u308b\u3060\u3051\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u4e00\u7dd2\u306b\u89e3\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\u7df4\u7fd2\u554f\u984c\u2460<\/span><\/div>
\n

\\(\\vec{a}=(2,3),\\vec{b}=(6,k)\\)\u3068\u3059\u308b\u3002<\/p>\n\n\n\n

\u3053\u306e\u3068\u304d\u3001\\(\\vec{a},\\vec{b}\\)\u304c\u4e92\u3044\u306b\u5e73\u884c\u3068\u306a\u308b\u3088\u3046\u306a\\(k\\)\u306e\u5024\u3092\u6c42\u3081\u3088\u3046\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\n
\u89e3\u7b54\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b<\/span><\/i><\/i><\/span><\/summary>
\n

\\begin{eqnarray}
2\\times k-3\\times6&=&0\\\\
2k-18&=&0\\\\
k&=&9
\\end{eqnarray}<\/p>\n<\/div><\/details>\n<\/div>\n\n\n\n

\u7df4\u7fd2\u554f\u984c\u2461<\/span><\/div>
\n

\\(\\vec{a}=(t,-4),\\vec{b}=(6,8)\\)\u3068\u3059\u308b\u3002
\u3053\u306e\u3068\u304d\u3001\\(\\vec{a},\\vec{b}\\)\u304c\u4e92\u3044\u306b\u5e73\u884c\u3068\u306a\u308b\u3088\u3046\u306a\\(t\\)\u306e\u5024\u3092\u6c42\u3081\u3088\u3046\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\n
\u89e3\u7b54\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b<\/span><\/i><\/i><\/span><\/summary>
\n

\\(\\vec{a},\\vec{b}\\)\u304c\u4e92\u3044\u306b\u5e73\u884c\u3067\u3042\u308b\u3068\u304d\u3001\\(\\vec{b}=k\\vec{a}\\)\u3068\u306a\u308b\u5b9f\u6570\\(k\\)\u304c\u3042\u308b\u3002<\/p>\n\n\n\n

\\((6,8)=k(t,-4)\\)\u3068\u306a\u308b\u5b9f\u6570\\(k\\)\u3092\u8003\u3048\u308b\u3068\u3001<\/p>\n\n\n\n

\\begin{equation}
\\begin{aligned}
6 & = kt\\\\
8 & = -4k
\\end{aligned}
\\end{equation}<\/p>\n\n\n\n

\u3057\u305f\u304c\u3063\u3066\u3001\\(k=-2\\)\u3067\u3042\u308b\u304b\u3089\\(t=\uff0d3\\)<\/p>\n<\/div><\/details>\n<\/div>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5782\u76f4\u6761\u4ef6<\/h2>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u5408\u308f\u305b\u3066\u3001\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5782\u76f4\u6761\u4ef6\u300d\u306b\u3064\u3044\u3066\u3082\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046<\/span>\u3002<\/span><\/p>\n\n\n\n

0\u3067\u306f\u306a\u30442\u3064\u306e\u30d9\u30af\u30c8\u30eb\\(\\vec{a}\u3001\\vec{b}\\)\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u30d9\u30af\u30c8\u30eb\u306e\u5782\u76f4\u6761\u4ef6\"<\/figure>\n<\/div>\n\n\n

\u3053\u306e\u3068\u304d<\/p>\n\n\n\n

\\[\\vec{a} \\bot \\vec{b} \\Leftrightarrow \\vec{a} \\cdot \\vec{b}=0 \\Leftrightarrow x_{1}x_{2}+y_{1}y_{2}=0\\]<\/p>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3000\u307e\u3068\u3081<\/h2>\n\n\n\n

\u4eca\u56de\u306f\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6<\/span><\/div>
\n
\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\"<\/figure>\n<\/div>\n\n\n

0\u3067\u306f\u306a\u30442\u3064\u306e\u30d9\u30af\u30c8\u30eb\\(\\vec{a}=(x_{1},y_{1}),\\vec{b}=(x_{2},y_{2})\\)\u304c\u3042\u308b\u3068\u304d\u3001\u5b9f\u6570\\(k\\)\u3092\u7528\u3044\u3066<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow \\vec{b}=k\\vec{a} \\cdots\u2460\\]<\/p>\n\n\n\n

\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n

\u307e\u305f\u3001<\/p>\n\n\n\n

\\[\\vec{a}\/\/\\vec{b} \\Leftrightarrow x_{1}y_{2}-x_{2}y_{1}=0 \\cdots\u2461\\]<\/p>\n\n\n\n

\u3082\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n

\u3053\u3053\u3067\u3001\\(k\\)\u306e\u5024\u304c0\u3088\u308a\u5927\u304d\u3044\u3068\u304d\u306f\u3001\\(\\vec{a}\\)\u3068\\(\\vec{b}\\)\u306f\u540c\u3058\u5411\u304d\u306b\u5e73\u884c\u3002
\\(k\\)\u306e\u5024\u304c0\u3088\u308a\u5c0f\u3055\u3044\u3068\u304d\u306f\u3001\\(\\vec{a}\\)\u3068\\(\\vec{b}\\)\u306f\u9006\u5411\u304d\u306b\u5e73\u884c\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n

\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3067\u3082\u5185\u7a4d\u306f\u6b20\u304b\u305b\u306a\u3044\u306e\u3067\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5185\u7a4d\u300d<\/span>\u306b\u3064\u3044\u3066\u3082\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u308c\u3067\u306f\u6700\u5f8c\u307e\u3067\u3054\u89a7\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u307f\u3093\u306a\u306e\u52aa\u529b\u304c\u5831\u308f\u308c\u307e\u3059\u3088\u3046\u306b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4eca\u56de\u306f\u6570\u5b66B\u306e\u30d9\u30af\u30c8\u30eb\u304b\u3089\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u300d\u306b\u95a2\u3059\u308b\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002 2\u3064\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306e\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002 \u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306a\u3089\u3070\u3001\u5927\u304d\u3055\u304c\u540c\u3058\u306b\u306a\u308b\u3088\u3046\u306b\\(k\\)\u500d\u3057\u3066\u8abf\u6574\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067 […]<\/p>\n","protected":false},"author":1,"featured_media":14743,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[16,225],"tags":[17,14,11],"class_list":["post-14741","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vector","category-math-b","tag-17","tag-b","tag-11"],"yoast_head":"\n\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc\" \/>\n<meta property=\"og:description\" content=\"\u4eca\u56de\u306f\u6570\u5b66B\u306e\u30d9\u30af\u30c8\u30eb\u304b\u3089\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u300d\u306b\u95a2\u3059\u308b\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002 2\u3064\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306e\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002 \u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306a\u3089\u3070\u3001\u5927\u304d\u3055\u304c\u540c\u3058\u306b\u306a\u308b\u3088\u3046\u306b(k)\u500d\u3057\u3066\u8abf\u6574\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\" \/>\n<meta property=\"og:site_name\" content=\"\u30de\u30b9\u30c8\u30e9\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-24T08:22:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-05T16:10:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u3086\u3046\u3084\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/mathtora\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u3086\u3046\u3084\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"12\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\"},\"author\":{\"name\":\"\u3086\u3046\u3084\",\"@id\":\"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395\"},\"headline\":\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc\",\"datePublished\":\"2025-12-24T08:22:58+00:00\",\"dateModified\":\"2026-03-05T16:10:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\"},\"wordCount\":505,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png\",\"keywords\":[\"\u30d9\u30af\u30c8\u30eb\",\"\u6570\u5b66\u2161B\",\"\u9ad8\u6821\u6570\u5b66\"],\"articleSection\":[\"\u30d9\u30af\u30c8\u30eb\",\"\u6570\u5b66B\"],\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\",\"url\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\",\"name\":\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc\",\"isPartOf\":{\"@id\":\"https:\/\/math-travel.jp\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png\",\"datePublished\":\"2025-12-24T08:22:58+00:00\",\"dateModified\":\"2026-03-05T16:10:32+00:00\",\"author\":{\"@id\":\"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395\"},\"breadcrumb\":{\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage\",\"url\":\"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png\",\"contentUrl\":\"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png\",\"width\":1200,\"height\":630,\"caption\":\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u30de\u30b9\u30c8\u30e9TOP\u30da\u30fc\u30b8\",\"item\":\"https:\/\/math-travel.jp\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6570\u5b66B\",\"item\":\"https:\/\/math-travel.jp\/math-b\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/math-travel.jp\/#website\",\"url\":\"https:\/\/math-travel.jp\/\",\"name\":\"\u30de\u30b9\u30c8\u30e9\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8\",\"description\":\"\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/math-travel.jp\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395\",\"name\":\"\u3086\u3046\u3084\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/math-travel.jp\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4d305e300a68567ef8b0fcf2b1b0f737d3d5554876534b905de84ae49b754859?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4d305e300a68567ef8b0fcf2b1b0f737d3d5554876534b905de84ae49b754859?s=96&d=mm&r=g\",\"caption\":\"\u3086\u3046\u3084\"},\"description\":\"\u6570\u5b66\u6559\u80b2\u5c02\u9580\u5bb6\u30fb\u30aa\u30f3\u30e9\u30a4\u30f3\u5bb6\u5ead\u6559\u5e2b\u300c\u30b9\u30bf\u30c7\u30a3\u30c8\u30ec\u30fc\u30ca\u30fc\u300d\u4ee3\u8868 \u611b\u77e5\u6559\u80b2\u5927\u5b66\u6559\u80b2\u5b66\u90e8\u6570\u5b66\u9078\u4fee\u3092\u5352\u696d\u3002\u5c0f\u5b66\u6821\u30fb\u4e2d\u5b66\u6821\u30fb\u9ad8\u7b49\u5b66\u6821\u306e\u6559\u54e1\u514d\u8a31\u3092\u4fdd\u6301\u3057\u3001\u5b9f\u7528\u6570\u5b66\u6280\u80fd\u691c\u5b9a\u6e961\u7d1a\u3092\u6240\u6301\u3002 \u500b\u5225\u6307\u5c0e\u6b7410\u5e74\u3001\u3053\u308c\u307e\u3067\u306b\u6570\u767e\u540d\u4ee5\u4e0a\u306e\u53d7\u9a13\u751f\u3092\u76f4\u63a5\u6307\u5c0e\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u6559\u79d1\u66f8\u306e\u300c\u884c\u9593\u300d\u306b\u3042\u308b\u8ad6\u7406\u3092\u8a00\u8a9e\u5316\u3057\u3001\u6697\u8a18\u306b\u983c\u3089\u306a\u3044\u300c\u672c\u8cea\u7684\u306a\u6570\u5b66\u306e\u697d\u3057\u3055\u300d\u3092\u4f1d\u3048\u308b\u3053\u3068\u3092\u4fe1\u6761\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u306f\u3001\u5168\u56fd\u306e\u751f\u5f92\u3092\u5bfe\u8c61\u3068\u3057\u305f\u30aa\u30f3\u30e9\u30a4\u30f3\u5bb6\u5ead\u6559\u5e2b\u300c\u30b9\u30bf\u30c7\u30a3\u30c8\u30ec\u30fc\u30ca\u30fc\u300d\u3092\u904b\u55b6\u3057\u3001\u504f\u5dee\u502440\u53f0\u304b\u3089\u306e\u9006\u8ee2\u5408\u683c\u3084\u3001\u6570\u5b66\u30a2\u30ec\u30eb\u30ae\u30fc\u306e\u514b\u670d\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\",\"sameAs\":[\"https:\/\/www.instagram.com\/mathtora\/\",\"https:\/\/x.com\/https:\/\/twitter.com\/mathtora\",\"https:\/\/www.youtube.com\/channel\/UCH36B2btgm4soZodctY1SJQ\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/","og_locale":"ja_JP","og_type":"article","og_title":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc","og_description":"\u4eca\u56de\u306f\u6570\u5b66B\u306e\u30d9\u30af\u30c8\u30eb\u304b\u3089\u300c\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u300d\u306b\u95a2\u3059\u308b\u3053\u3093\u306a\u60a9\u307f\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002 2\u3064\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306e\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002 \u30d9\u30af\u30c8\u30eb\u304c\u5e73\u884c\u306a\u3089\u3070\u3001\u5927\u304d\u3055\u304c\u540c\u3058\u306b\u306a\u308b\u3088\u3046\u306b(k)\u500d\u3057\u3066\u8abf\u6574\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067 […]","og_url":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/","og_site_name":"\u30de\u30b9\u30c8\u30e9\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8","article_published_time":"2025-12-24T08:22:58+00:00","article_modified_time":"2026-03-05T16:10:32+00:00","og_image":[{"width":1200,"height":630,"url":"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png","type":"image\/png"}],"author":"\u3086\u3046\u3084","twitter_card":"summary_large_image","twitter_creator":"@https:\/\/twitter.com\/mathtora","twitter_misc":{"\u57f7\u7b46\u8005":"\u3086\u3046\u3084","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"12\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#article","isPartOf":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/"},"author":{"name":"\u3086\u3046\u3084","@id":"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395"},"headline":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc","datePublished":"2025-12-24T08:22:58+00:00","dateModified":"2026-03-05T16:10:32+00:00","mainEntityOfPage":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/"},"wordCount":505,"commentCount":0,"image":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage"},"thumbnailUrl":"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png","keywords":["\u30d9\u30af\u30c8\u30eb","\u6570\u5b66\u2161B","\u9ad8\u6821\u6570\u5b66"],"articleSection":["\u30d9\u30af\u30c8\u30eb","\u6570\u5b66B"],"inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/math-travel.jp\/math-b\/vector-parallel\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/","url":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/","name":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc","isPartOf":{"@id":"https:\/\/math-travel.jp\/#website"},"primaryImageOfPage":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage"},"image":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage"},"thumbnailUrl":"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png","datePublished":"2025-12-24T08:22:58+00:00","dateModified":"2026-03-05T16:10:32+00:00","author":{"@id":"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395"},"breadcrumb":{"@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/math-travel.jp\/math-b\/vector-parallel\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#primaryimage","url":"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png","contentUrl":"https:\/\/math-travel.jp\/wp-content\/uploads\/2023\/11\/\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01.png","width":1200,"height":630,"caption":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u305d\u306e\u8a3c\u660e\uff01\u5e73\u884c\u306a\u30d9\u30af\u30c8\u30eb\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3088\u3046\uff01"},{"@type":"BreadcrumbList","@id":"https:\/\/math-travel.jp\/math-b\/vector-parallel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u30de\u30b9\u30c8\u30e9TOP\u30da\u30fc\u30b8","item":"https:\/\/math-travel.jp\/"},{"@type":"ListItem","position":2,"name":"\u6570\u5b66B","item":"https:\/\/math-travel.jp\/math-b\/"},{"@type":"ListItem","position":3,"name":"\u30d9\u30af\u30c8\u30eb\u306e\u5e73\u884c\u6761\u4ef6\u3068\u8a3c\u660e\uff01k\u500d\uff08\u5b9f\u6570\u500d\uff09\u306e\u95a2\u4fc2\u3068\u6210\u5206\u3067\u306e\u89e3\u304d\u65b9\u3092\u30de\u30b9\u30bf\u30fc"}]},{"@type":"WebSite","@id":"https:\/\/math-travel.jp\/#website","url":"https:\/\/math-travel.jp\/","name":"\u30de\u30b9\u30c8\u30e9\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8","description":"\u9ad8\u6821\u6570\u5b66\u307e\u3068\u3081\u30b5\u30a4\u30c8","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/math-travel.jp\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Person","@id":"https:\/\/math-travel.jp\/#\/schema\/person\/b0d9d1e7e332261165c2f7318aa4d395","name":"\u3086\u3046\u3084","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/math-travel.jp\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/4d305e300a68567ef8b0fcf2b1b0f737d3d5554876534b905de84ae49b754859?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4d305e300a68567ef8b0fcf2b1b0f737d3d5554876534b905de84ae49b754859?s=96&d=mm&r=g","caption":"\u3086\u3046\u3084"},"description":"\u6570\u5b66\u6559\u80b2\u5c02\u9580\u5bb6\u30fb\u30aa\u30f3\u30e9\u30a4\u30f3\u5bb6\u5ead\u6559\u5e2b\u300c\u30b9\u30bf\u30c7\u30a3\u30c8\u30ec\u30fc\u30ca\u30fc\u300d\u4ee3\u8868 \u611b\u77e5\u6559\u80b2\u5927\u5b66\u6559\u80b2\u5b66\u90e8\u6570\u5b66\u9078\u4fee\u3092\u5352\u696d\u3002\u5c0f\u5b66\u6821\u30fb\u4e2d\u5b66\u6821\u30fb\u9ad8\u7b49\u5b66\u6821\u306e\u6559\u54e1\u514d\u8a31\u3092\u4fdd\u6301\u3057\u3001\u5b9f\u7528\u6570\u5b66\u6280\u80fd\u691c\u5b9a\u6e961\u7d1a\u3092\u6240\u6301\u3002 \u500b\u5225\u6307\u5c0e\u6b7410\u5e74\u3001\u3053\u308c\u307e\u3067\u306b\u6570\u767e\u540d\u4ee5\u4e0a\u306e\u53d7\u9a13\u751f\u3092\u76f4\u63a5\u6307\u5c0e\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u6559\u79d1\u66f8\u306e\u300c\u884c\u9593\u300d\u306b\u3042\u308b\u8ad6\u7406\u3092\u8a00\u8a9e\u5316\u3057\u3001\u6697\u8a18\u306b\u983c\u3089\u306a\u3044\u300c\u672c\u8cea\u7684\u306a\u6570\u5b66\u306e\u697d\u3057\u3055\u300d\u3092\u4f1d\u3048\u308b\u3053\u3068\u3092\u4fe1\u6761\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u306f\u3001\u5168\u56fd\u306e\u751f\u5f92\u3092\u5bfe\u8c61\u3068\u3057\u305f\u30aa\u30f3\u30e9\u30a4\u30f3\u5bb6\u5ead\u6559\u5e2b\u300c\u30b9\u30bf\u30c7\u30a3\u30c8\u30ec\u30fc\u30ca\u30fc\u300d\u3092\u904b\u55b6\u3057\u3001\u504f\u5dee\u502440\u53f0\u304b\u3089\u306e\u9006\u8ee2\u5408\u683c\u3084\u3001\u6570\u5b66\u30a2\u30ec\u30eb\u30ae\u30fc\u306e\u514b\u670d\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002","sameAs":["https:\/\/www.instagram.com\/mathtora\/","https:\/\/x.com\/https:\/\/twitter.com\/mathtora","https:\/\/www.youtube.com\/channel\/UCH36B2btgm4soZodctY1SJQ"]}]}},"_links":{"self":[{"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/posts\/14741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/comments?post=14741"}],"version-history":[{"count":32,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/posts\/14741\/revisions"}],"predecessor-version":[{"id":21627,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/posts\/14741\/revisions\/21627"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/media\/14743"}],"wp:attachment":[{"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/media?parent=14741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/categories?post=14741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/math-travel.jp\/wp-json\/wp\/v2\/tags?post=14741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}