作函数图像：

y=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
y=xcosxx
y=xsinx

作函数图像：

y=xx^3/（x-1）^2

作函数图像：

y=-arcsinx

作函数图像：

y=xcosx
y=xsinx
y=sin

作函数图像：

y=10sin(x)/x