Given an input x, create a square matrix y of zeros with x rows and x columns.
please recheck your testsuite.ps:may I suggest you finish some problems by yourself before you create one.because this kinda problem had been repeated like hundreds times.we really tired of seeing this.
I fixed the problem in the test suite.
Sum the numbers on the main diagonal
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Find a Pythagorean triple
Square a Number
Create a Standard Size Vector
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