function real( z ) {
	return z.re;
}
Returns the real component of a single-precision complex floating-point number.

@param {Complex} z - complex number
@returns {number} real component

@example
var Complex64 = require( '@stdlib/complex/float32/ctor' );

var z = new Complex64( 5.0, 3.0 );

var re = real( z );
// returns 5.0