And more complex operations, like a trigonometric function, could take over a minute.

复杂的像函数之类的操作，可能要超一分钟。

Polynomials could also be used to approximate logarithmic and trigonometric functions, which are a real hassle to calculate by hand.

多项式也可以用于近似对数函数这些函数手算相当麻烦。