Usage

`javascript
var add3 = require( '@stdlib/complex-float64-base-add3' );
`

#### add3( z1, z2, z3 )

Computes the sum of three double-precision complex floating-point numbers.

`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );

var z = new Complex128( -1.5, 2.5 );

var v = add3( z, z, z );
// returns [ -4.5, 7.5 ]
`

The function supports the following parameters:

- z1: first complex number.
- z2: second complex number.
- z3: third complex number.

#### add3.assign( re1, im1, re2, im2, re3, im3, out, strideOut, offsetOut )

Computes the sum of three double-precision complex floating-point numbers and assigns results to a provided output array.

`javascript
var Float64Array = require( '@stdlib/array-float64' );

var out = new Float64Array( 2 );
var v = add3.assign( 5.0, 3.0, -2.0, 1.0, 5.0, 3.0, out, 1, 0 );
// returns [ 8.0, 7.0 ]

var bool = ( out === v );
// returns true
`

The function supports the following parameters:

- re1: real component of the first complex number.
- im1: imaginary component of the first complex number.
- re2: real component of the second complex number.
- im2: imaginary component of the second complex number.
- re3: real component of the third complex number.
- im3: imaginary component of the third complex number.
- out: output array.
- strideOut: stride length for out.
- offsetOut: starting index for out.

#### add3.strided( z1, sz1, oz1, z2, sz2, oz2, z3, sz3, oz3, out, so, oo )

Computes the sum of three double-precision complex floating-point numbers stored in real-valued strided array views and assigns results to a provided strided output array.

`javascript
var Float64Array = require( '@stdlib/array-float64' );

var z1 = new Float64Array( [ 5.0, 3.0 ] );
var z2 = new Float64Array( [ -2.0, 1.0 ] );
var z3 = new Float64Array( [ 5.0, 3.0 ] );
var out = new Float64Array( 2 );

var v = add3.strided( z1, 1, 0, z2, 1, 0, z3, 1, 0, out, 1, 0 );
// returns [ 8.0, 7.0 ]

var bool = ( out === v );
// returns true
`

The function supports the following parameters:

- z1: first complex number strided array view.
- sz1: stride length for z1.
- oz1: starting index for z1.
- z2: second complex number strided array view.
- sz2: stride length for z2.
- oz2: starting index for z2.
- z3: third complex number strided array view.
- sz3: stride length for z3.
- oz3: starting index for z3.
- out: output array.
- so: stride length for out.
- oo: starting index for out.