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%% Elementwise Roots of Matrix %% % Create a matrix of bases, |X|, and a matrix of nth roots, |N|. X = [-2 -2 -2; 4 -3 -5] N = [1 -1 3; 1/2 5 3] %% % Each element in |X| corresponds to an element in |N|. %% % Calculate the real nth roots of the elements in |X|. Y = nthroot(X,N) %% % Except for the signs (which are treated separately), the result is % comparable to |abs(X).^(1./N)|. By contrast, you can calculate the % complex roots using |X.^(1./N)|.