function of several variables

基本解釋

So, a function of several variables doesn't have the usual derivative.
因此，一個(gè)多變量的函數(shù)沒(méi)有通常的導(dǎo)數(shù)。
According to the different signal characteristics, signal or can be expressed as a function of several independent variables .
按信號(hào)特點(diǎn)的不同，信號(hào)可表示成一個(gè)或幾個(gè)獨(dú)立變量的函數(shù)。
Similarly, when you have a function of several variables, say of two variables, for example, then the minimum and the maximum will be achieved either at a critical point.
類似地，一個(gè)多元函數(shù)，具體點(diǎn)，比如二元函數(shù)，它的最小值和最大值,可以在臨界點(diǎn)處取到。