function sscal( N, alpha, x, stride ) {
	var ox = stride2offset( N, stride );
	return ndarray( N, alpha, x, stride, ox );
}
Multiplies a vector `x` by a scalar `alpha`.

@param {PositiveInteger} N - number of indexed elements
@param {number} alpha - scalar
@param {Float32Array} x - input array
@param {integer} stride - index increment
@returns {Float32Array} input array

@example
var Float32Array = require( '@stdlib/array/float32' );

var x = new Float32Array( [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ] );

sscal( x.length, 5.0, x, 1 );
// x => <Float32Array>[ -10.0, 5.0, 15.0, -25.0, 20.0, 0.0, -5.0, -15.0 ]