is_real Function (ROM Call 0x5A9)

AMS 2.02 or higher unknown.h

short is_real (ESI);

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


Uses: estack_to_float, get_lb, get_ub, Integer1Index, IntegerMinus1Index, is_nonnegative, is_variable, is_whole_number, primary_tag_list, push_approx, push_difference, likely_approx_to_number, next_expression_index, top_estack, _bcd_math
Used by: add_to_top, are_units_consistent, get_ub, index_if_pushed_qquad_info, integer_non_unknown, is_nonnegative, is_positive, push_auto_units_conversion, push_but_factor, push_but_term, push_constant_factors, push_constant_terms, push_dependent_factors, push_dependent_terms, push_gcd_then_cofactors, push_independent_factors, push_independent_terms, push_make_proper, push_nonconstant_factors, push_nonconstant_terms, push_nonnumeric_factors, push_poly_qr, push_reciprocal, push_simplify, push_standardize, raise_to_top, replace_top_with_post_simplified, replace_top2_with_pow, replace_top2_with_sum, did_push_anti_deriv, did_push_series, push_1st_derivative, push_abs, push_asin, push_asinh, push_atan, push_atanh, push_comb, push_comdenom, push_conj, push_cosh, push_csolve, push_czeros, push_def_int, push_denominator, push_desolve, push_exp, push_expand, push_extended_prod, push_factor, push_floor, push_im, push_lim, push_ln, push_max, push_min, push_mod, push_nsolve, push_numerator, push_phase, push_re, push_sign, push_sin2, push_sinh, push_solve, push_summation, push_tanh, push_zeros, did_push_to_polar, push_dot_exponentiate, push_equals, push_exponentiate, push_greater_than, push_greater_than_or_equals, push_less_than, push_less_than_or_equals, push_negate, push_not_equals, push_product, push_sum, push_to_cylin, push_to_sphere, push_internal_simplify, ROM Call 0x4E6, ROM Call 0x606