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is_symmetric | Function (ROM Call 0x2DC) |
AMS 1.01 or higher | estack.h |
short is_symmetric (CESI expr_ptr, CESI var_ptr); |
Checks for symmetry.
is_symmetric returns TRUE if the expression pointed to by expr_ptr is such that it remains the same when the variable pointed to by var_ptr changes its sign, otherwise it returns FALSE.