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comparison scripts/general/gradient.m @ 23084:ef4d915df748

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Mon, 23 Jan 2017 14:27:48 -0500
parents 3a2b891d0b33 e9a0469dedd9
children 092078913d54
comparison
equal deleted inserted replaced
23081:7485462a6924 23084:ef4d915df748
304 %! df_dx = @(x, y) cos (x) .* cos (y); 304 %! df_dx = @(x, y) cos (x) .* cos (y);
305 %! df_dy = @(x, y) -sin (x) .* sin (y); 305 %! df_dy = @(x, y) -sin (x) .* sin (y);
306 %! [dx, dy] = gradient (f, xy); 306 %! [dx, dy] = gradient (f, xy);
307 %! assert (dx, df_dx (xy (:, 1), xy (:, 2)), 0.1); 307 %! assert (dx, df_dx (xy (:, 1), xy (:, 2)), 0.1);
308 %! assert (dy, df_dy (xy (:, 1), xy (:, 2)), 0.1); 308 %! assert (dy, df_dy (xy (:, 1), xy (:, 2)), 0.1);
309