Wed Oct 8 07:49:47 2025 helmholtz_exact_test(): python version: 3.10.12 numpy version: 1.26.4 Test helmholtz_exact(). Graphics saved as "helmholtz_exact_m0_n1.png" Graphics saved as "helmholtz_exact_m1_n2.png" Graphics saved as "helmholtz_exact_m2_n3.png" helmholtz_exact_test(): Normal end of execution. Wed Oct 8 07:49:49 2025