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ArrayFire: diag

Extract the diagonal from an array. More...

Extract the diagonal from an array.

If extract is true, an array is extracted containing diagonal of the matrix, while a false condition returns a diagonal matrix.

array a = randu(dim4(4, 3));

array b = diag(a);

array c = diag(a, 1);

array a = randu(4);

array b = diag(a, 0, false);

array b = diag(a, -1, false);

C Interface to create a diagonal matrix from an extracted diagonal array.

See also, af_diag_extract.

Parameters

[out] out diagonal matrix [in] in diagonal array [in] num diagonal index

Returns

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

C Interface to extract the diagonal from an array.

See also, af_diag_create.

Parameters

[out] out num-th diagonal array [in] in input array [in] num diagonal index

Returns

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

C++ Interface to extract the diagonal from an array.

Parameters

[in] in input array [in] num diagonal index [in] extract if true, returns an array containing diagonal of the matrix; if false, returns a diagonal matrix

Returns

diagonal array (or matrix)

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