What is the difference between a^3 and a.^3 if a is a matrix?

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Eduardo Gallegos
Eduardo Gallegos 2022-10-29
编辑： James Tursa 2022-10-29
C = magic(3)
D = C.^3;
D_max = max(D(:));
E = C^3

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James Tursa
James Tursa 2022-10-29
编辑：James Tursa 2022-10-29
E = C^3 is a matrix power, equivalent to E = C*C*C, where these are all matrix multiplies.
D = C.^3 is element-wise power, where D(1,1) = C(1,1)*C(1,1)*C(1,1), etc.

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