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.
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Generate N equally spaced intervals between -L and L
Add a row of zeros on top of a matrix
Quasi-Newton Method for Unconstrained Minimization using BFGS Update
Composite Trapezoidal Rule for Numeric Integration
Sequential Unconstrained Minimization (SUMT) using Interior Penalty
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