from brian2.codegen.optimisation import ArithmeticSimplifier)
- class brian2.codegen.optimisation.ArithmeticSimplifier(variables)[source]¶
Carries out the following arithmetic simplifications:
Constant evaluation (e.g. exp(0)=1) by attempting to evaluate the expression in an “assumptions namespace”
Binary operators, e.g. 0*x=0, 1*x=x, etc. You have to take care that the dtypes match here, e.g. if x is an integer, then 1.0*x shouldn’t be replaced with x but left as 1.0*x.
variables : dict of (str, Variable)
Usual definition of variables.
assumptions : sequence of str
Additional assumptions that can be used in simplification, each assumption is a string statement. These might be the scalar statements for example.
Assumes that the node has already been fully processed by BrianASTRenderer