foo.pas(11,9) Error: Identifier not found "si"
foo.pas(12,13) Error: Wrong number of parameters specified for call to "solve"
foo.pas(23,7) Error: Identifier not found "reanln"
foo.pas(24,12) Warning: Variable "s2" does not seem to be initialized
foo.pas(26,13) Error: Identifier not found "ontput"
foo.pas(27,4) Fatal: There were 4 errors compiling module, stopping
Fatal: Compilation aborted
Error: C:\FPC\2.6.2\bin\i386-win32\ppc386.exe returned an error exitcode (normal if you did not specify a source file to be compiled)