Solves a real symmetric definite linear system using a preconditioned conjugate gradient method with reverse communication.

Solves a linear, non-negative constrained least-squares system.

Solves a linear least-squares system with bounds on the unknowns.

Method of lines with Variable Griddings.

Permutes the rows or columns of a matrix.

Rearranges the elements of an array as specified by a permutation.

Prints a plot of up to 10 sets of points.

Prints a plot of up to 10 sets of points.

Evaluates a real general matrix polynomial.

Evaluates the derivative of a piecewise polynomial on a grid.

Evaluates the derivative of a piecewise polynomial.

Evaluates the integral of a piecewise polynomial.

Evaluates a piecewise polynomial.

Decomposes an integer into its prime factors.