| lead_base_index | Function (ROM Call 0x2DE)

AMS 1.01 or higher | estack.h

ESI lead_base_index (CESI ptr);

Gets the index of the base of the lead factor of an expression.

lead_base_index first calls lead_factor_index, then applies factor_base_index to the result. So, it returns the pointer to the base of the lead factor (i.e. the lead base) of the expression pointed to by ptr.

Uses: factor_base_index, lead_factor_index
Used by: compare_expressions, index_of_lead_base_of_lead_term, is_monomial, did_push_anti_deriv, did_push_series, push_1st_derivative, push_abs, push_acosh, push_asin, push_asinh, push_atan, push_atanh, push_comdenom, push_cosh, push_csolve, push_czeros, push_def_int, push_denominator, push_desolve, push_exp, push_expand, push_factor, push_floor, push_im, push_lim, push_ln, push_max, push_min, push_nsolve, push_numerator, push_phase, push_re, push_sign, push_sin2, push_sinh, push_solve, push_tanh, 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, did_push_divide_units, get_ub, has_unit_base, index_if_pushed_binomial_info, index_if_pushed_qquad_info, index_reductum_with_tag_base, index_rmng_fctrs_start_base, index_rmng_fctrs_start_base_tag, is_term_improper, 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, ROM Call 0x48D