| factor_base_index | Function (ROM Call 0x2C9)

AMS 1.01 or higher | estack.h

ESI factor_base_index (CESI ptr);

Gets the index of the base of an expression.

If ptr points to the POW_TAG, which is a case when it points to an expression of form base ^ exponent factor_base_index returns the pointer to base. If ptr does not point to the POW_TAG, factor_base_index returns ptr (i.e. the pointer to the expression itself).

Used by: is_monomial_in_kernel, lead_base_index, did_push_anti_deriv, did_push_series, push_1st_derivative, push_atan, push_comdenom, push_csolve, push_czeros, push_def_int, push_denominator, push_desolve, push_expand, push_extended_prod, push_factor, push_floor, push_im, push_lim, push_max, push_min, push_nsolve, push_numerator, push_phase, push_re, push_sin2, push_solve, push_summation, push_zeros, did_push_to_polar, 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, add_to_top, are_units_consistent, get_ub, index_if_pushed_binomial_info, index_if_pushed_qquad_info, is_units_term, 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_standardize, raise_to_top, replace_top_with_post_simplified, replace_top2_with_pow, replace_top2_with_sum