$$$\frac{1}{\ln\left(x\right)}$$$ 的积分

该计算器将求出$$$\frac{1}{\ln\left(x\right)}$$$的积分/原函数，并显示步骤。

求$$$\int \frac{1}{\ln\left(x\right)}\, dx$$$。

该积分（对数积分）没有闭式表达式：

$${\color{red}{\int{\frac{1}{\ln{\left(x \right)}} d x}}} = {\color{red}{\operatorname{li}{\left(x \right)}}}$$

因此，

$$\int{\frac{1}{\ln{\left(x \right)}} d x} = \operatorname{li}{\left(x \right)}$$

加上积分常数：

$$\int{\frac{1}{\ln{\left(x \right)}} d x} = \operatorname{li}{\left(x \right)}+C$$

$$$\int \frac{1}{\ln\left(x\right)}\, dx = \operatorname{li}{\left(x \right)} + C$$$A

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