Syntax

   a = tauodepwpvf(x, y, ode, conditions, varargin)

Description

   a = taupwpvf(varargin) returns the coefficients satisfying
   yn = Pa, 

Input (required)

   x              = independent tau variable (itau object).
   y              = dependent tau variable (dtau oject).
   problem        = ordinary differential equation or system (char).
   conditions     = conditions of problem (cell of char).
   pieces         = number of steps to execute.
   exact_solution = exact solution (if known, otherwise write 'no' or '').
   step           = step on x vector to show the results.
   precond        = preconditioner ('no','ilu','diag').
                    for 'ndiad' define: 'numbd' (number od diagonals);
                    for 'ilu' define: 'milu', 'typeilu', 'droptol',
                    'thresh' and 'udiag'
   solver         = linear system solver (check guide).
   apsol          = boolean varargin to show the graphical solution.
   resid          = boolean varargin to show the graphical error.
   coeff          = boolean varargin to show the coefficients a.
   d3spy          = boolean varargin to show the spy of T matrix.
   infor          = boolean varargin to show the inromations in CLI.
   saves          = name varargin to save the .mat with the results.

Output

   a              = coefficients such that yn = Pa.
 See also tau, tausys, taupw, tausyspw and schursolver.