imag

Return the imaginary component of a complex number.

Usage

var imag = require( '@stdlib/complex/imag' );

imag( z )

Returns the imaginary component of a complex number.

var Complex128 = require( '@stdlib/complex/float64' );

var z = new Complex128( 5.0, 3.0 );
var im = imag( z );
// returns 3.0

Examples

var Complex128 = require( '@stdlib/complex/float64' );
var randu = require( '@stdlib/random/base/randu' );
var round = require( '@stdlib/math/base/special/round' );
var imag = require( '@stdlib/complex/imag' );

var re;
var im;
var z;
var i;

for ( i = 0; i < 100; i++ ) {
    re = round( (randu()*100.0) - 50.0 );
    im = round( (randu()*50.0) - 25.0 );
    z = new Complex128( re, im );
    console.log( 'imag(%s) = %d', z.toString(), imag( z ) );
}