nag_pde_parab_1d_coll (d03pdc) Example Program Results
Polynomial degree = 3 No. of elements = 9
Accuracy requirement = 1.000e-04 Number of points = 28
t / x -1.0000 -0.6000 -0.2000 0.2000 0.6000 1.0000
(User-supplied callback uinit, first invocation.)
(User-supplied callback pdedef, first invocation.)
(User-supplied callback bndary, first invocation.)
0.0001 u(1) 1.0000 0.8090 0.3090 -0.3090 -0.8090 -1.0000
u(2) -2.4850 -1.9957 -0.7623 0.7623 1.9957 2.4850
0.0010 u(1) 1.0000 0.8085 0.3088 -0.3088 -0.8085 -1.0000
u(2) -2.5583 -1.9913 -0.7606 0.7606 1.9913 2.5583
0.0100 u(1) 1.0000 0.8051 0.3068 -0.3068 -0.8051 -1.0000
u(2) -2.6962 -1.9481 -0.7439 0.7439 1.9481 2.6962
0.1000 u(1) 1.0000 0.7951 0.2985 -0.2985 -0.7951 -1.0000
u(2) -2.9022 -1.8339 -0.6338 0.6338 1.8339 2.9022
1.0000 u(1) 1.0000 0.7939 0.2972 -0.2972 -0.7939 -1.0000
u(2) -2.9233 -1.8247 -0.6120 0.6120 1.8247 2.9233
Number of integration steps in time 50
Number of residual evaluations of resulting ODE system 407
Number of Jacobian evaluations 18
Number of iterations of nonlinear solver 122