Matrix raised to a certain power

[Han Ng]

Hi all,

I am new to mata and have a question related to matrix manipulation in MATA. I have:

• A = (1;2;3) 3 x 1 column vector
• B = (1,2) 1 x 2 row vector

My final output is a 3 x 2 matrix, where the first column is just A raised to the power of 1 and the second column is just A raised to the power of 2. In the latest version of Matlab, the code would have simply been A.^B or bsxfun(A,B,.^). I was wondering if there is any efficient method of coding this up. Thanks.

[Andrew Musau]

mata
A = (1,2,3)
B = (1,2)
(((colnonmissing(B))'*A):^B')'
end

Res.:

. mata
------------------------------------------------- mata (type end to exit) -------------
:
: A = (1,2,3)

:
: B = (1,2)

:
: (((colnonmissing(B))'*A):^B')'
       1   2
    +---------+
  1 |  1   1  |
  2 |  2   4  |
  3 |  3   9  |
    +---------+

:
: end
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