Scrapbox:数式

code:２次方程式の解.tex

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

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

code:tex

x+y=1

$ x+y=1

code:分数.tex

\frac{a}{b}

$ \frac{a}{b}

code:平方根.tex

\sqrt{x}

$ \sqrt{x}

code:三角関数.tex

\sin x = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!} x^{2n+1}

$ \sin x = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!} x^{2n+1}

code:行列.tex

\begin{pmatrix} -1 & 0 \\\ 0 & 1 \end{pmatrix}

$ \begin{pmatrix} -1 & 0 \\\ 0 & 1 \end{pmatrix}

code:連立方程式.tex

\begin{cases} X' = -X \\Y' = Y \end{cases}

$ \begin{cases} X' = -X \\Y' = Y \end{cases}

内積

code:内積.tex

a \cdot b

$ a \cdot b

外積

code:外積.tex

a \times b

$ a \times b

ベクトル表記

code:ベクトル表記.tex

\vec{a}

$ \vec{a}

code:ベクトル表記.tex

\binom{a}{b}

$ \binom{a}{b}

code:ベクトル表記.tex

\begin{pmatrix} {x_1} \\\ {y_1} \\\ {z_1} \end{pmatrix}

$ \begin{pmatrix} {x_1} \\\ {y_1} \\\ {z_1} \end{pmatrix}

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