「Mathjax2.x 開発」の版間の差分

2025年1月25日 (土) 16:59時点における最新版

Mathjax 2.7に戻る。

概要

　Mathjax2.x系で使えるコード一覧を作成したいと思います。しばらくはコード動作確認調整期間になります。Mathjax3.x系向けのサンプルを全部貼りましたので、動いていないものは非対応だったんだなと思っていいと思います。

Checking environment...

　Version2.0系に関する記事です。現在の2.0系最新バージョンは

Loading MathJax version...

１．二次方程式の解の公式

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

２．積分の例

$$\int_{0}^{1} x^2 \, dx = \frac{1}{3}$$

$$\int_{0}^{1} x^2 \, dx = \frac{1}{3}$$

３．行列の掛け算

$$A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}, B = \begin{pmatrix} 5 & 6 \\ 7 & 8 \end{pmatrix}, A \times B = \begin{pmatrix} 19 & 22 \\ 43 & 50 \end{pmatrix}$$

$$A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}, B = \begin{pmatrix} 5 & 6 \\ 7 & 8 \end{pmatrix}, A \times B = \begin{pmatrix} 19 & 22 \\ 43 & 50 \end{pmatrix}$$

４．複素数の計算

$$z = 3 + 4i, |z| = \sqrt{3^2 + 4^2} = 5$$

$$z = 3 + 4i, |z| = \sqrt{3^2 + 4^2} = 5$$

５．ピタゴラスの定理

$$a^2 + b^2 = c^2$$

$$a^2 + b^2 = c^2$$

６．シュレディンガー方程式

$$i \hbar \frac{\partial}{\partial t} \psi = \hat{H} \psi$$

$$i \hbar \frac{\partial}{\partial t} \psi = \hat{H} \psi$$

７．ベクトルの内積

$$\vec{A} \cdot \vec{B} = |\vec{A}| |\vec{B}| \cos \theta$$

$$\vec{A} \cdot \vec{B} = |\vec{A}| |\vec{B}| \cos \theta$$

８．ローレンツ変換

$$ x^{\prime} = \gamma (x - vt), \phantom{0} t^{\prime} = \gamma ( t - \frac{vx}{c^2} ) $$

$$ x^{\prime} = \gamma (x - vt), \phantom{0} t^{\prime} = \gamma ( t - \frac{vx}{c^2} ) $$

９．二項定理

$$ (x + y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k} y^k $$

$$ (x + y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k} y^k $$

１０．解析関数のコーシー・リーマン方程式

$$\frac{\partial u}{\partial x} = \frac{\partial v}{\partial y}, \quad \frac{\partial u}{\partial y} = -\frac{\partial v}{\partial x}$$

$$\frac{\partial u}{\partial x} = \frac{\partial v}{\partial y}, \quad \frac{\partial u}{\partial y} = -\frac{\partial v}{\partial x}$$

１１．正弦関数の定義

$$\sin(\theta) = \frac{\text{対辺}}{\text{斜辺}}$$

$$\sin(\theta) = \frac{\text{対辺}}{\text{斜辺}}$$

１２．余弦定理

$$c^2 = a^2 + b^2 - 2ab \cos(C)$$

$$c^2 = a^2 + b^2 - 2ab \cos(C)$$

１３．三重角の公式（正弦）

$$\sin(3\theta) = 3\sin(\theta) - 4\sin^3(\theta)$$

$$\sin(3\theta) = 3\sin(\theta) - 4\sin^3(\theta)$$

線

分数

$$ \frac{x}{y} $$

下線

a long long ago_________________

@@ 19行目: / 19行目: @@
        },
        TeX:{
-        equationNumbers:{autoNumber: "AMS"},
+//        equationNumbers:{autoNumber: "AMS"},
          extensions: ["[Contrib]/physics/physics.js","[Contrib]/siunitx/siunitx.js", "color.js", "cancel.js"]
        },
-      "HTML-CSS": {
+  "HTML-CSS": {
-        undefinedFamily: "'Neo Euler Medium', Meiryo, STIXGeneral, 'Arial Unicode MS', serif",
+    availableFonts: [],
-        webFont :"Neo Euler Medium"
+    preferredFont: null,
-      }
+    webFont: "STIX-Web"
+  },
+//      "HTML-CSS": {
+//        undefinedFamily: "'Neo Euler Medium', Meiryo, STIXGeneral, 'Arial Unicode MS', serif",
+//        webFont :"Neo Euler Medium"
+//      }
      }
    );</script>
@@ 57行目: / 62行目: @@
      if(MathJax.version) {
      // MathJax のバージョンを取得して表示
-       document.getElementById("version").textContent = "MathJax &amp;@@&amp; version: " + MathJax.version;
+       document.getElementById("version").textContent = "MathJax version: " + MathJax.version;
      }
    } else {
@@ 69行目: / 74行目: @@
-=== 数 ===
+１．二次方程式の解の公式
+<syntaxhighlight lang="tex">
+$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
+</syntaxhighlight>
-*分数
+<yjavascript></script>
-<freescript></script>
+$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+<script></yjavascript>
-<code class="tex">\frac{1}{2}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \frac{1}{2} $$
-</div>
+２．積分の例
+<syntaxhighlight lang="tex">
+$$\int_{0}^{1} x^2 \, dx = \frac{1}{3}$$
+</syntaxhighlight>
-*分数（大）
+$$\int_{0}^{1} x^2 \, dx = \frac{1}{3}$$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\displaystyle \frac{1}{2}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \displaystyle \frac{1}{2} $$
-</div>
-*分数（大）2
+３．行列の掛け算
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}, B = \begin{pmatrix} 5 & 6 \\ 7 & 8 \end{pmatrix}, A \times B = \begin{pmatrix} 19 & 22 \\ 43 & 50 \end{pmatrix}$$
-<code class="tex">\dfrac{1}{2}
+</syntaxhighlight>
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \dfrac{1}{2} $$
-</div>
+$$A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}, B = \begin{pmatrix} 5 & 6 \\ 7 & 8 \end{pmatrix}, A \times B = \begin{pmatrix} 19 & 22 \\ 43 & 50 \end{pmatrix}$$
-*分数（1行）
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\require{physics} \flatfrac{1}{2}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{physics} \flatfrac{1}{2} $$
-</div>
+４．複素数の計算
+<syntaxhighlight lang="tex">
+$$z = 3 + 4i, |z| = \sqrt{3^2 + 4^2} = 5$$
+</syntaxhighlight>
-*分数と括弧
+$$z = 3 + 4i, |z| = \sqrt{3^2 + 4^2} = 5$$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\left( -\frac{1}{2} \right)^2
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \left( -\frac{1}{2} \right)^2 $$
-</div>
-*分数と括弧2
+５．ピタゴラスの定理
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$a^2 + b^2 = c^2$$
-<code class="tex">\require{physics} \qty{ -\frac{1}{2} }^2
+</syntaxhighlight>
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{physics} \qty{ -\frac{1}{2} }^2 $$
-</div>
+$$a^2 + b^2 = c^2$$
-*連分数
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\frac{a+b}{c+\frac{d}{e}}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \frac{a+b}{c+\frac{d}{e}} $$
-</div>
+６．シュレディンガー方程式
+<syntaxhighlight lang="tex">
+$$i \hbar \frac{\partial}{\partial t} \psi = \hat{H} \psi$$
+</syntaxhighlight>
-*連分数2
+$$i \hbar \frac{\partial}{\partial t} \psi = \hat{H} \psi$$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\cfrac{a+b}{c+\cfrac{d}{e}}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \cfrac{a+b}{c+\cfrac{d}{e}} $$
-</div>
-*無限連分数
+７．ベクトルの内積
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$\vec{A} \cdot \vec{B} = |\vec{A}| |\vec{B}| \cos \theta$$
-<code class="tex">\begin{eqnarray}
+</syntaxhighlight>
-+\frac{1}{1+\frac{1}{1+\frac{1}{1+\ddots}}}
-= \frac{1}{2} \left( 1+\sqrt{5} \right)
-\end{eqnarray}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \begin{eqnarray}
-+\frac{1}{1+\frac{1}{1+\frac{1}{1+\ddots}}}
-= \frac{1}{2} \left( 1+\sqrt{5} \right)
-\end{eqnarray} $$
-</div>
+$$\vec{A} \cdot \vec{B} = |\vec{A}| |\vec{B}| \cos \theta$$
-*小数
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">0.123
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ 0.123 $$
-</div>
+８．ローレンツ変換
+<syntaxhighlight lang="tex">
+$$ x^{\prime} = \gamma (x - vt), \phantom{0} t^{\prime} = \gamma ( t - \frac{vx}{c^2} ) $$
+</syntaxhighlight>
-*循環小数
+$$ x^{\prime} = \gamma (x - vt), \phantom{0} t^{\prime} = \gamma ( t - \frac{vx}{c^2} ) $$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\frac{1}{11} = 0.\dot{0}\dot{9}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \frac{1}{11} = 0.\dot{0}\dot{9} $$
-</div>
-*無限小数1
+９．二項定理
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$ (x + y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k} y^k $$
-<code class="tex">\pi = 3.14 \ldots
+</syntaxhighlight>
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \pi = 3.14 \ldots $$
-</div>
+$$ (x + y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k} y^k $$
-*無限小数2
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\sqrt{2} = 1.4142 \cdots
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \sqrt{2} = 1.4142 \cdots $$
-</div>
+１０．解析関数のコーシー・リーマン方程式
+<syntaxhighlight lang="tex">
+$$\frac{\partial u}{\partial x} = \frac{\partial v}{\partial y}, \quad \frac{\partial u}{\partial y} = -\frac{\partial v}{\partial x}$$
+</syntaxhighlight>
-*無限大
+$$\frac{\partial u}{\partial x} = \frac{\partial v}{\partial y}, \quad \frac{\partial u}{\partial y} = -\frac{\partial v}{\partial x}$$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\infty
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \infty $$
-</div>
-*絶対値
+１１．正弦関数の定義
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$\sin(\theta) = \frac{\text{対辺}}{\text{斜辺}}$$
-<code class="tex">|x|
+</syntaxhighlight>
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ |x| $$
-</div>
+$$\sin(\theta) = \frac{\text{対辺}}{\text{斜辺}}$$
-*絶対値2
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\vert x \vert
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \vert x \vert $$
-</div>
+１２．余弦定理
+<syntaxhighlight lang="tex">
+$$c^2 = a^2 + b^2 - 2ab \cos(C)$$
+</syntaxhighlight>
-*分数と絶対値
+$$c^2 = a^2 + b^2 - 2ab \cos(C)$$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\left| \dfrac{x}{2} \right|
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \left| \dfrac{x}{2} \right| $$
-</div>
-*分数と絶対値2
+１３．三重角の公式（正弦）
-<freescript></script>
+<syntaxhighlight lang="tex">
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
+$$\sin(3\theta) = 3\sin(\theta) - 4\sin^3(\theta)$$
-<code class="tex">\require{physics} \qty{\dfrac{x}{2}}
+</syntaxhighlight>
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{physics} \qty{\dfrac{x}{2}} $$
-</div>
+$$\sin(3\theta) = 3\sin(\theta) - 4\sin^3(\theta)$$
-*分数と絶対値3
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\require{physics} \abs{ \dfrac{x}{2} }
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{physics} \abs{ \dfrac{x}{2} } $$
-</div>
+=== 線 ===
+*分数
-*ガウス記号
+$$ \frac{x}{y} $$
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">[x]
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ [x] $$
-</div>
-*ガウス記号2
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\lbrack x \rbrack
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \lbrack x \rbrack $$
-</div>
-*床関数
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\lfloor x \rfloor
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \lfloor x \rfloor $$
-</div>
-*天井関数
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\lceil x \rceil
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \lceil x \rceil $$
-</div>
-*ガウス記号サンプル
+*下線
-<freescript></script>
+<div width="100%" align="center><span class="mrow" id="MathJax-Span-2"><span class="munderover" id="MathJax-Span-3"><span style="display: inline-block; position: relative; width: 6.087em; height: 0px;"><span style="position: absolute; clip: rect(1.127em, 1006.09em, 2.457em, -999.997em); top: -2.094em; left: 0em;"><span class="mtext" id="MathJax-Span-4"><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">a</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;"> </span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">l</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">o</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">n</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">g</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;"> </span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">l</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">o</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">n</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">g</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;"> </span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">a</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">g</span><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">o</span></span><span style="display: inline-block; width: 0px; height: 2.099em;"></span></span><span style="position: absolute;clip: rect(1.127em, 1000.36em, 2.457em, -999.997em);top: -1.918em;left: 0em;"><span class="mo" id="MathJax-Span-5"><span style="font-family: &quot;Neo Euler Medium&quot;, Meiryo, STIXGeneral, &quot;Arial Unicode MS&quot;, serif; font-size: 79%; font-style: normal; font-weight: normal;">_________________</span></span><span style="display: inline-block; width: 0px; height: 2.099em;"></span></span></span></span></span></div>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\begin{eqnarray}
-[x]
-= \lfloor x \rfloor
-= \max\{ n\in\mathbb{Z} \mid n \leqq x \}
-\end{eqnarray}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \begin{eqnarray}
-[x]
-= \lfloor x \rfloor
-= \max\{ n\in\mathbb{Z} \mid n \leqq x \}
-\end{eqnarray} $$
-</div>
-=== 四則演算 ===
-*足す
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">1 + 2
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ 1 + 2 $$
-</div>
-*引く
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">3 - 1
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ 3 - 1 $$
-</div>
-*掛ける
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">2 \times 3
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ 2 \times 3 $$
-</div>
-*割る
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\require{physics} 6 \ \divisionsymbol \ 3
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{physics} 6 \ \divisionsymbol \ 3 $$
-</div>
-*プラスマイナス
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\pm 1
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \pm 1 $$
-</div>
-*マイナスプラス
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\mp 1
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \mp 1 $$
-</div>
-*掛ける（簡略）
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">a \cdot b = ab
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ a \cdot b = ab $$
-</div>
-*割る（分数）
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">a \ \divisionsymbol \ b = \frac{a}{b}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ a \ \divisionsymbol \ b = \frac{a}{b} $$
-</div>
-*掛け算の筆算
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\begin{array}{r}
-\\
-\frac{\times\phantom{0}63}{\phantom{\times}201}
-\underline{\phantom{0}402\phantom{0}} \\
-\end{array}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \begin{array}{r}
-\\
-\frac{\times\phantom{0}63}{\phantom{0}201} \\
-\underline{\phantom{0}402\phantom{0}} \\
-\end{array} $$
-</div>
-*割り算の筆算
-<freescript></script>
-<div class="hljs-wrap"><pre data-label="MathJaxSample" class="pre-wrap">
-<code class="tex">\require{enclose}\begin{array}{r}
-.6 \\[-3pt]
-\enclose{longdiv}{190\phantom{0}} \\[-3pt]
-  \underline{175\phantom{.0}} \\[-3pt]
-\phantom{.}0 \\[-3pt]
-  \underline{15\phantom{.}0} \\[-3pt]
-  \phantom{000}0
-\end{array}
-</code></pre></div><script></freescript><div style="background-color:#eeeeee; border:2px solid;">
-$$ \require{enclose}\begin{array}{r}
-.6 \\[-3pt]
-\enclose{longdiv}{190\phantom{0}} \\[-3pt]
-  \underline{175\phantom{.0}} \\[-3pt]
-\phantom{.}0 \\[-3pt]
-  \underline{15\phantom{.}0} \\[-3pt]
-  \phantom{000}0
-\end{array} $$
-</div>