Solving Nonlinear Systems

For linear systems, see Matrix.solv().

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prmat()

Prints the form of the matrix defined by eqn statements. Each nonzero element is printed as an "*".

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solve()

Does one iteration of the non-linear system defined by eqn statements. Returns the linear norm of the difference between left and right hand sides plus the change in the dependent variables.

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eqinit()

Throws away previous dependent variable and equation specifications from eqn statements.