首先安装：pip install handcalcs

handcalcs github官网：https://github.com/connorferster/handcalcs

示例代码

from handcalcs.decorator import handcalc


@handcalc()
def check(x):
    y = x ** 2
    return y


if __name__ == '__main__':
    result = check(3)
    print(result[0])

可以得到如下结果：

\begin{aligned}
y &= \left( x \right) ^{ 2 }  = \left( 3 \right) ^{ 2 } &= 9  
\end{aligned}

Latex显示的效果（也可以用markdown写成$\begin{.......\end{aligned}$格式）：

$\begin{array}{rlr}y& ={\left(x\right)}^2={\left(3\right)}^2& =9\end{array}$

更多公式使用

from handcalcs.decorator import handcalc
from math import sqrt


@handcalc()
def check(a, b):
    y = -b + sqrt(a ** 2) / 3
    return y


if __name__ == '__main__':
    result = check(3, 4)
    print(result[0])

得到结果\begin{aligned} y &= \left( - b \right) + \frac{ \sqrt { \left( a \right) ^{ 2 } } }{ 3 } = \left( - 4 \right) + \frac{ \sqrt { \left( 3 \right) ^{ 2 } } }{ 3 } &= -3.0 \end{aligned}，显示效果：

$\begin{array}{rlr}y& =\left(-b\right)+\frac{\sqrt{{\left(a\right)}^2}}{3}=\left(-4\right)+\frac{\sqrt{{\left(3\right)}^2}}{3}& =-3.0\end{array}$

如果只需要公式，可以对latex修改一下：

$\begin{array}{rl}y& =\left(-b\right)+\frac{\sqrt{{\left(a\right)}^2}}{3}\end{array}$