I know that diagind() returns the index of the diagonal elements of matrix, in which we can assign them to a specific value such as in the below aa=rand(9,9); aa[diagind(aa)] .= 1 However, lets say I am working on a part of the matrix aa such as aa[5:7,5:7] and I want to assign its diagonal elemen…

How to assign the diagonal elements of part of matrix to a value?

Seif_Shebl October 22, 2021, 11:46pm 2

You can simply do:

aa[diagind(aa)[5:7]] .= 1

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