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im_index |
Function (ROM Call 0x2CC) |
Gets the index of the imaginary part of an expression.
If ptr points to the COMPLEX_TAG
(i.e. if the expression is complex), im_index returns the pointer
to the imaginary part of the expression. If ptr does not point to the
COMPLEX_TAG (i.e. if the expression is real),
im_index returns a pointer to a simple zero expression, i.e. expression which
consists only of the number 0 (floating point or integer,
depending on whether the approximation mode is active or not).
Note: The expression should be in internal canonic form
(see push_internal_simplify), else this function
is not reliable.
Uses: Float0Index, Integer0Index
Used by: did_push_anti_deriv, push_1st_derivative, push_csolve, push_czeros, push_def_int, push_desolve, push_lim, push_max, push_min, push_nsolve, push_solve, push_zeros, push_equals, push_greater_than, push_greater_than_or_equals, push_less_than, push_less_than_or_equals, push_not_equals, get_ub