complex

Create complex arrays. More...

Functions
AFAPI af_err	af_cplx (af_array *out, const af_array in)
	C Interface to create a complex array from a single real array. More...
AFAPI af_err	af_cplx2 (af_array *out, const af_array real, const af_array imag, const bool batch)
	C Interface to create a complex array from two real arrays. More...
AFAPI array	complex (const array &in)
	C++ Interface to create a complex array from a single real array. More...
AFAPI array	complex (const array &real_, const array &imag_)
	C++ Interface to create a complex array from two real arrays. More...
AFAPI array	complex (const array &real_, const double imag_)
	C++ Interface to create a complex array from a single real array for the real component and a single scalar for each imaginary component. More...
AFAPI array	complex (const double real_, const array &imag_)
	C++ Interface to create a complex array from a single scalar for each real component and a single real array for the imaginary component. More...

Detailed Description

Create complex arrays.

Complex arrays are created from any of the following four inputs:

1. a single real array, returning zeros for the imaginary component. See array b in the example.
2. two real arrays, one for the real component and one for the imaginary component. See array c in the example.
3. a single real array for the real component and a single scalar for each imaginary component. See array d in the example.
4. a single scalar for each real component and a single real array for the imaginary component. See array e in the example.

Examples:

 
    // Create a, a 2x3 array
    array a = iota(dim4(2, 3));  // a = [0, 2, 4,
                                 //      1, 3, 5]
 
    // Create b from a single real array, returning zeros for the imaginary
    // component
    array b = complex(a);  // b = [(0, 0), (2, 0), (4, 0),
                           //      (1, 0), (3, 0), (5, 0)]
 
    // Create c from two real arrays, one for the real component and one for the
    // imaginary component
    array c = complex(a, a);  // c = [(0, 0), (2, 2), (4, 4),
                              //      (1, 1), (3, 3), (5, 5)]
 
    // Create d from a single real array for the real component and a single
    // scalar for each imaginary component
    array d = complex(a, 2);  // d = [(0, 2), (2, 2), (4, 2),
                              //      (1, 2), (3, 2), (5, 2)]
 
    // Create e from a single scalar for each real component and a single real
    // array for the imaginary component
    array e = complex(2, a);  // e = [(2, 0), (2, 2), (2, 4),
                              //      (2, 1), (2, 3), (2, 5)]
 

Function Documentation

af_cplx()

AFAPI af_err af_cplx	(	af_array *	out,
		const af_array	in
	)

C Interface to create a complex array from a single real array.

Parameters

[out]	out	complex array
[in]	in	real array

Returns

AF_SUCCESS, if function returns successfully, else an af_err code is given

af_cplx2()

AFAPI af_err af_cplx2	(	af_array *	out,
		const af_array	real,
		const af_array	imag,
		const bool	batch
	)

C Interface to create a complex array from two real arrays.

Parameters

[out]	out	complex array
[in]	real	real array to be assigned as the real component of the returned complex array
[in]	imag	real array to be assigned as the imaginary component of the returned complex array
[in]	batch	batch mode

Returns

AF_SUCCESS, if function returns successfully, else an af_err code is given

complex() [1/4]

AFAPI array complex

(

const array &

in

)

C++ Interface to create a complex array from a single real array.

Parameters

[in]

in

input array

Returns

complex array

complex() [2/4]

AFAPI array complex	(	const array &	real_,
		const array &	imag_
	)

C++ Interface to create a complex array from two real arrays.

Parameters

[in]	real_	input array to be assigned as the real component of the returned complex array
[in]	imag_	input array to be assigned as the imaginary component of the returned complex array

Returns

complex array

complex() [3/4]

AFAPI array complex	(	const array &	real_,
		const double	imag_
	)

C++ Interface to create a complex array from a single real array for the real component and a single scalar for each imaginary component.

Parameters

[in]	real_	input array to be assigned as the real component of the returned complex array
[in]	imag_	single scalar to be assigned as the imaginary component of each value of the returned complex array

Returns

complex array

complex() [4/4]

AFAPI array complex	(	const double	real_,
		const array &	imag_
	)

C++ Interface to create a complex array from a single scalar for each real component and a single real array for the imaginary component.

Parameters

[in]	real_	single scalar to be assigned as the real component of each value of the returned complex array
[in]	imag_	input array to be assigned as the imaginary component of the returned complex array

Returns

complex array