value to test
boolean indicating if a value is a 64-bit or 128-bit complex number
var Complex128 = require( `@stdlib/complex/float64` );
var Complex64 = require( `@stdlib/complex/float32` );
var x = new Complex128( 4.0, 2.0 );
var bool = isComplex( x );
// returns true
x = new Complex64( 4.0, 2.0 );
bool = isComplex( x );
// returns true
Tests if a value is a 64-bit or 128-bit complex number.