/* Last updated: December 12, 2020 by Hereman in Boulder */ /* For use with symmgrp2020.max under Maxima */ /* File name: vcheat-run1-Dec12-2020-wh.dat. */ /* Data file for a heat equation with a variable coefficient given in the online manuscript Faruk Gungor. */ /* u_t - x u_xx- bb u_x = 0 */ /* Assign u[1] to u, x[1] to x, x[2] to t, bb is a constant. */ /* number of independent variables: */ p : 2$ /* number of dependent variables: */ q : 1$ /* number of equations in the system: */ m : 1$ warnings: false$ parameters : [bb] $ sublisteqs : [all]$ subst_deriv_of_vi: true$ highest_derivatives : all$ /* no information is given yet -- this will be updated in next runs. */ info_given : true$ depends([eta1,f1,f2],[x[1],x[2]]); depends(eta2,x[2]); phi1 : f1*u[1]+f2; e1 : u[1,[0,1]]-x[1]*u[1,[2,0]]-bb*u[1,[1,0]]; /* bb is just a constant positive parameter */ v1 : u[1,[2,0]]; /* end of data file vcheat-run1-Dec12-2020-wh.dat. */