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Solve PDE specified in a PDEModel

If the Newton iteration does not converge,

`solvepde`

displays the error message`Too many iterations`

or`Stepsize too small`

.If the initial guess produces matrices containing

`NaN`

or`Inf`

elements,`solvepde`

displays the error message`Unsuitable initial guess U0 (default: U0 = 0)`

.If you have very small coefficients, or very small geometric dimensions,

`solvepde`

can fail to converge, or can converge to an incorrect solution. In this case, you might obtain better results by scaling the coefficients or geometry dimensions to be of order one.

`applyBoundaryCondition`

| `setInitialConditions`

| `solvepdeeig`

| `specifyCoefficients`

| `PDEModel`