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Oliver-Loeffler avatar Oliver-Loeffler commented on August 11, 2024

Actually the method matrix.power(n) works properly. What you are looking for is a function which applies an exponent to each element.

What matrix.power(n) is doing:
http://mathonline.wikidot.com/powers-of-a-matrix#toc0

I have to see through all the functions and conceps where such element-wise power function would fit into or if it already exists. This is called Hadamard product.

Reference:
https://en.wikipedia.org/wiki/Hadamard_product_(matrices)

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Oliver-Loeffler avatar Oliver-Loeffler commented on August 11, 2024

There is now a new method Matrix.hadamardPower(int n) which technically does what was asked for. Please try out.

This function uses the Hadmard product in order to produce Matrices with powers of n for each element. This function does not modify the origin matrix, a new matrix is created. When n=1 a copy of the source matrix is returned. As ⊚ is used to symbolize the Hadamard product operator, the operation looks like:

(A⊚B)ij = (A)ij⊚(B)ij

There are also test cases included for demonstration.

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ashokrajab avatar ashokrajab commented on August 11, 2024

Thank you, Oliver.

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Oliver-Loeffler avatar Oliver-Loeffler commented on August 11, 2024

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