Usage

`javascript
var csscal = require( '@stdlib/blas-base-csscal' );
`

#### csscal( N, alpha, x, strideX )

Scales a single-precision complex floating-point vector by a single-precision floating-point constant.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );

var x = new Complex64Array( [ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] );

csscal( 3, 2.0, x, 1 );
// x => [ 2.0, 2.0, 2.0, 2.0, 2.0, 2.0 ]
`

The function has the following parameters:

- N: number of indexed elements.
- alpha: scalar constant.
- x: input [Complex64Array][@stdlib/array/complex64].
- strideX: stride length for x.

The N and stride parameters determine which elements in x are scaled by alpha. For example, to scale every other element in x by alpha,

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

csscal( 2, 2.0, x, 2 );
// x => [ 2.0, 4.0, 3.0, 4.0, 10.0, 12.0, 7.0, 8.0 ]
`

Note that indexing is relative to the first index. To introduce an offset, use [typed array][mdn-typed-array] views.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );

// Initial array:
var x0 = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

// Create an offset view:
var x1 = new Complex64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element

// Scale every element in x1:
csscal( 3, 2.0, x1, 1 );
// x0 => [ 1.0, 2.0, 6.0, 8.0, 10.0, 12.0, 14.0, 16.0 ]
`

#### csscal.ndarray( N, alpha, x, strideX, offsetX )

Scales a single-precision complex floating-point vector by a single-precision floating-point constant using alternative indexing semantics.

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );

csscal.ndarray( 3, 2.0, x, 1, 0 );
// x => [ 2.0, 4.0, 6.0, 8.0, 10.0, 12.0 ]
`

The function has the following additional parameters:

- offsetX: starting index for x.

While [typed array][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to scale every other element in the input strided array starting from the second element,

`javascript
var Complex64Array = require( '@stdlib/array-complex64' );

var x = new Complex64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

csscal.ndarray( 2, 2.0, x, 2, 1 );
// x => [ 1.0, 2.0, 6.0, 8.0, 5.0, 6.0, 14.0, 16.0 ]
`