function isComplex64( value ) {
	return (
		value instanceof Complex64 ||
		constructorName( value ) === 'Complex64'
	);
}
Tests if a value is a 64-bit complex number.

@param {*} value - value to test
@returns {boolean} boolean indicating if a value is a 64-bit complex number

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

var x = new Complex64( 4.0, 2.0 );

var bool = isComplex64( x );
// returns true