a ž¬órNcCs0|dustjdur|S|dus(tjdur,|S|S)aSupport function for controlling intermediate simplification. Returns a simplification function according to the global setting of dotprodsimp operation. ``deffunc`` - Function to be used by default. ``offfunc`` - Function to be used if dotprodsimp has been turned off. ``onfunc`` - Function to be used if dotprodsimp has been turned on. ``dotprodsimp`` - True, False or None. Will be overridden by global _dotprodsimp_state.state if that is not None. FTr)ZdeffuncZofffuncZonfuncrr r r Ú_get_intermediate_simps rFcCst|dd|ƒS)zYSame as ``_get_intermediate_simp`` but returns bools instead of functions by default.FT)r)Údefaultrr r r Ú_get_intermediate_simp_bool,srcCs t|ddƒS)zReturns True if x is zero.Úis_zeroN)Úgetattrrr r r Ú_iszero3srcCs t|ƒdkS)zNTests by expand_mul only, suitable for polynomials and rational functions.rrrr r r Ú_is_zero_after_expand_mul8sr)FN)Ú contextlibrÚ threadingrZsympy.core.functionrZsympy.simplify.simplifyrZ _dotprodsimprrrrrrr r r r Ús     ÿ