Once you have started specifying libraries explicitly, you also need to add -lm, which is the mathematics library.

一旦开始显式地指定库，还必需添加- lm，它是数学库。

youdao

Once you have started specifying libraries explicitly, you also need to add -lm, which is the mathematics library.

一旦开始显式地指定库，还必需添加- lm，它是数学库。

youdao