this code is a stokes flow solver by Fast multipole boundary element method

wfmm_WFMM Openmp version wideband FMM for 2D complex Helmholtz equation.zip-This is the code for the Wideband Fast Multipole Method for 2D Helmholtz equation.testrun.c is a test or demonstration file to use wfmm() . By modifying testrun.c file, the