function sapx( N, alpha, x, strideX ) {
	return ndarray( N, alpha, x, strideX, stride2offset( N, strideX ) );
}
Adds a scalar constant to each element in a single-precision floating-point strided array.

@param {PositiveInteger} N - number of indexed elements
@param {number} alpha - scalar constant
@param {Float32Array} x - input array
@param {integer} strideX - stride length
@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 ] );

sapx( x.length, 5.0, x, 1 );
// x => <Float32Array>[ 3.0, 6.0, 8.0, 0.0, 9.0, 5.0, 4.0, 2.0 ]