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Asked: 2026-05-31T20:05:33+00:00

is it possible to do calculation like this in C? A*exp(i*(b+c)) + D*exp(i*(e+f)), where

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is it possible to do calculation like this in C?

A*exp(i*(b+c)) + D*exp(i*(e+f)),

where A,b,c,D,e,f are real numbers.

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1 Answer

  1. Editorial Team

    Section 7.3 in the C99 Standard (or C11 Standard) deals with complex numbers.

    Example code

    #include <complex.h>
#include <stdio.h>

int main(void) {
    double A, b, c, D, e, f;
    complex double x;
    const complex double i = csqrt(-1);

    A = 1;
    b = 2;
    c = 3;
    D = 4;
    e = 5;
    f = 6;
    x = A * cexp(i * (b + c)) + D * cexp(i * (e + f));
    printf("value is %f + %fi\n", creal(x), cimag(x));
}

    You can see the code running at ideone: http://ideone.com/d7xD7

    The output is

    value is 0.301365 + -4.958885i
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