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

而更复杂的像三角函数之类的操作，可能要超过一分钟。

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和三角函数这些函数手算相当麻烦。