stdarg.h:
  * on MIPS platforms, "double complex" fail as arguments: FIXED

lmp_ctrl_diff:
  * LMP_DIVISION: 1/x etc. produces shit: FIXED
  * however, differentation may not yet work in some cases

lmp_node_simplify:
  * (x*(x*x)) procudes recursive structure: FIXED
  * (a*(a*x)) produces shit: memory allocation problem: FIXED

lmp_tree_balance:
  * Segfault when return: problem with stack, FIXED
