Use forward elimination to make the coefficient matrix, A, an upper triangular matrix, and then solve using back substitution, for a sample 2-by-2 system.
Permute diagonal and antidiagonal
Area of an equilateral triangle
Forward Elimination for Gauss Elimination
Sequential Unconstrained Minimization (SUMT) using Interior Penalty
Quasi-Newton Method for Unconstrained Minimization using BFGS Update
False position (linear interpolation) method of finding a root.
Rosenbrock's Banana Function and its derivatives
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