cabs, cabsf, cabsl

Retrieves the absolute value of a complex number.

Syntax

double cabs(
   _Dcomplex z
);
float cabs(
   _Fcomplex z
);  // C++ only
long double cabs(
   _Lcomplex z
);  // C++ only
float cabsf(
   _Fcomplex z
);
long double cabsl(
   _Lcomplex z
);

Parameters

z
A complex number.

Return value

The absolute value of z.

Remarks

Because C++ allows overloading, you can call overloads of cabs that take _Fcomplex or _Lcomplex values, and return float or long double values. In a C program, cabs always takes a _Dcomplex value and returns a double value.

Requirements

For more compatibility information, see Compatibility.

See also

Alphabetical function reference
norm, normf, norml
creal, crealf, creall
cproj, cprojf, cprojl
conj, conjf, conjl
cimag, cimagf, cimagl
carg, cargf, cargl