寻找第n个根 [英] Finding nth root

问题描述

vb.net中有什么方法可以找到数字的第n个根吗?

我们知道有sqrt()可以找到平方根.

有没有找到立方根的函数，等等...

Is there any method in vb.net to find the n''th root of a number??

As we know there is sqrt() to find the square root .

Is there any function to find the cube root and so on...

推荐答案

AFAIK，没有像SQRT()这样的内置函数.

要获得给定数字的第n个根，我现在可以想到以下两个:
方法1:

AFAIK, there is no inbuilt function like SQRT().

To get the nth root of a given number, these two I can think of for now:
Way 1:

dblCubeRoot = dblNumber ^ (1/3)

您可以将"3"更改为您想要获取的任何根.例如:(1/n)

方法2:

You can change ''3'' to be whatever root you''re trying to get. Ex: (1/n)

Way 2:

double power = 1.0 / 5.0; // n=5 here
double secondnum = Math.Pow(firstnum, power); 

使用 Math.Pow [

Use Math.Pow [^]method.

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