tangent

释义

a. 接触的, 正切的, 离题的\nn. 切线, 正切 tangent line 切线，正切 tangent point 切点；切向点 tangent plane 切面相切平面

例句

If we were moving on the tangent plane, this would be an actual equality.

如果我们在切平面上移动,这将会是一个真正的等式。

If you want strict equalities in approximations means that we replace the function by its tangent approximation.

如果你想要严格的近似等式,那就意味着我们要用切线逼近来取代原函数。