a RG5dE@sddlmZddlmZddlmZGdddeZeZeddZdd d Z d d d d e d fddZ dddZ ddZ ddZ ddZd S))contextmanager)local expand_mulc@seZdZddZdS)DotProdSimpStatecCs d|_dSN)state)selfr T/var/www/html/django/DPS/env/lib/python3.9/site-packages/sympy/matrices/utilities.py__init__szDotProdSimpState.__init__N)__name__ __module__ __qualname__r r r r r rsrccs*tj}z|t_dVW|t_n|t_0dSr_dotprodsimp_stater)xoldr r r dotprodsimp s rFcCsddlm}|||dS)z;Wrapper for simplify.dotprodsimp to avoid circular imports.r)r)withsimp)sympy.simplify.simplifyr)exprrdpsr r r _dotprodsimps rcCs|Srr rr r r rNcCs0|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 _get_intermediate_simps rcCst|dd|S)zYSame as ``_get_intermediate_simp`` but returns bools instead of functions by default.FT)r)defaultrr r r _get_intermediate_simp_bool3srcCs t|ddS)zReturns True if x is zero.is_zeroN)getattrrr r r _iszero:sr"cCs t|dkS)zNTests by expand_mul only, suitable for polynomials and rational functions.rrrr r r _is_zero_after_expand_mul?sr#cCsddlm}||S)z$ Wrapper to avoid circular imports. r)simplify)rr$)rr$r r r _simplifyEs r%)F)FN) contextlibr threadingrsympy.core.functionrrrrrrrr"r#r%r r r r s