imag

Returns the imaginary part of a complex number.

Defined in header <complex.h>

Syntax

#include <complex.h>
double imag(complex  x);

Portability

Remarks

The data associated to a complex number consists of two floating-point (double) numbers. Imag returns the one considered to be the imaginary part.

Return value

The imaginary part of the complex number.

See also

• complex
• conj
• real

Example

#include <coinplex.h>

int main(void)

   double X = 3.1, y = 4.2;
   complex z = complex(x,y);
   cout << "z = " «  z «  "\n";
   cout << "  has real part = " «  real(z) «  "\n";
cout «  "  and imaginary real part = " «  imag(z) << "\n";
cout «  "z has complex conjugate = " << conj(z) «  "\n";
return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Stable link: /3.1/complex.h/imag/ · short form /3.1/imag/