mkICcopy2(ICeq, unknown_list, params_list, unkntestlist,testbsflist);

Parameters:

ICeq - A list of equations specifying initial conditions. Each entry in the list is an equation of the form u(x,y)=expr, where u(x,y) is a variable in unknown_list. Those variables in unknown_list which do not appear on the left hand side of an equation in ICeq, are set to zero initially.

unknown_list - The list of unknowns as discussed above.

params_list - A list of scalar input parameters.

unkntestlist - A list of testfunction names that couple a certain testfunction with a certain unknown. The number of entries in unkntestlist must be the same as in unknown_list and old_unknown_list. The usage is the same as for the corresponding argument to mkFem2.

testbsflist - A list containing three entries, the first two being names of testfunctions, the last the name of a file that contins the definitions of the basefunctions. The two basefunction names are identified with the actual basefunctions via ordering and the name of this file, i.e., with testbsflist:=[v(x,y),q(x,y),`2DP2P1_gsq_bsf`], v(x,y) is P2 and q(x,y) is P1. The usage is the same as for the corresponding argument to mkFem2.

• Generates the code needed to set initial conditions. The nodal values of the unknowns are assigned the values of the right hand sides of the equations in ICeq, evaluated at the corresponding points.
• Those variables in unknown_list which do not appear on the left hand side of an equation in ICeq, are set to zero initially.

Examples:

> # make initial conditions. ic_eq is on the form 'unknown = expr':
> # variables that do not enter in lhs of an ic_eq are given the
# intial value 0:
> mkICcopy2([ v(x,y)=x*x+y*y ], unknown_list, params_list, unkntestlist, testbsflist);

ic_init