File: log.m

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suitesparse-graphblas 7.4.0%2Bdfsg-1
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function C = log (G)
%LOG natural logarithm.
% C = log (G) is the natural logarithm of each entry of G.
% Since log (0) is nonzero, the result is a full matrix.
% If any entry in G is negative, the result is complex.
%
% See also GrB/log1p, GrB/log2, GrB/log10, GrB/exp.

% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0

G = G.opaque ;
C = GrB (gb_check_imag_zero (gb_trig ('log', gbfull (G)))) ;