Nth Root

[zk52959]

In C, is there a standard function for calculating the Nth Root of a number?

If not, what is the most efficient way to calculate it?

[severach]

Nth root algorithm

[zk52959]

I tried the algorithm above, but it only seems to work for limited conditions.

An engineer explained to me how I can use the pre-existing pow() function in the <math.h> standard library.


   inverseN = 1.0 / n;

   x = pow(A, inverseN);


This method seems to work for a wider set of conditions.