Fri Oct 10 10:41:09 2025 doughnut_exact_test(): python version: 3.10.12 numpy version: 1.26.4 matplotlib version: 3.5.1 Test doughnut_exact(). Parameter values: m = 3.0 n = 5.0 t0 = 0.0 y0 = [1. 1. 3.] tstop = 10.0 Graphics saved as "doughnut_exact.png" doughnut_exact_test(): Normal end of execution. Fri Oct 10 10:41:10 2025