Question

How to use acos() to compute the complex base-e exponential of complex n in C

Answer 1

#include <stdio.h>
#include <math.h>
#include <complex.h>
 
int main(void)
{
    double PI = acos(-1);
    double complex n = cexp(I * PI); 
    
    printf("exp(i*pi) = %.1f%+.1fi\n", creal(n), cimag(n));
 
    return 0;
}
  
/*
run:
 
exp(i*pi) = -1.0+0.0i

*/

 

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