Write a function to implement partial pivoting for Gauss elimination, given the pivot element.
Sorry but I don't understand the test suite.
Times 2 - START HERE
Find the sum of the elements in the "second" diagonal
Find the stride of the longest skip sequence
Create a two dimensional zero matrix
Quasi-Newton Method for Unconstrained Minimization using BFGS Update
Bisection method of finding a root.
Fletcher-Reeves Conjugate Gradient Method
Steepest Descent Method
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