A redlining tool kit consisting of lines, arcs, circles, text, shading, and balloons provides tools for reviewing work in progress, making needed changes, and adding comments to drawings and documents. Users can also enter their own functions, which can be fitted and ranked along with the built-in equations. Matrix computations for these equations are done to 38 significant digits. Chebyshev polynomials and rationals, nonlinearly fit constrained rationals, and Fourier-series polynomials and rationals are now supported. The local-regression procedure interpolates data points.
Users can customize graphics, which can include any of five different residual graphic formats.
The program continually increases the polynomial order on a fixed finite-element mesh until a reasonable convergence is reached. An automatic adaptive p-refinement strategy has a posteriori error estimation for each cycle. Local p-order escalation is automatically controlled by local solution behavior. User-defined convergence tolerance is based on energy, error, or both for adaptive refinement. Convergence plots of calculated quantities are available at user-selected locations.