| is_undefined | Function (ROM Call 0x5B7)

AMS 2.04 or higher | unknown.h

short is_undefined (ESI);

This identifier has not been documented yet. Please help us out.

Uses: next_expression_index
Used by: did_push_approx_inflection_point, get_ub, did_push_anti_deriv, did_push_series, push_1st_derivative, push_csolve, push_czeros, push_def_int, push_desolve, push_extended_prod, push_lim, push_max, push_min, push_nsolve, push_solve, push_summation, push_zeros, push_equals, push_greater_than, push_greater_than_or_equals, push_less_than, push_less_than_or_equals, push_not_equals