cached

import ampform_dpd.io.cached

Handy aliases for working with cached SymPy expressions and lambdification.

lambdify(expr: Expr, *, backend: str = 'jax') → PositionalArgumentFunction

lambdify(expr: Expr, parameters: Mapping[Symbol, ParameterValue], *, backend: str = 'jax') → ParametrizedBackendFunction

Lambdify a SymPy Expr and cache the result to disk.

The cached result is fetched from disk if the hash of the expression is the same as the hash embedded in the filename.

Parameters:

• expr – A sympy.Expr on which to call create_function() or create_parametrized_function().

• parameters – Specify this argument in order to create a ParametrizedBackendFunction instead of a PositionalArgumentFunction.

• backend – The choice of backend for the created numerical function. WARNING: this function has only been tested for backend="jax"!

See also

ampform.sympy.cached

simplify(expr: Expr, *args, **kwargs) → Expr

Perform simplify() and cache the result to disk.

Added in version 0.15.7.

subs(expr: Expr, substitutions: Mapping[Basic, Basic]) → Expr

Call subs() and cache the result to disk.

trigsimp(expr: Expr, *args, **kwargs) → Expr

Perform trigsimp() and cache the result to disk.

Added in version 0.15.7.

unfold(obj: Expr | Model, substitutions: Mapping[Basic, Basic] | None = None) → Expr

Efficiently perform both substitutions and doit().

xreplace(expr: Expr, substitutions: Mapping[Basic, Basic]) → Expr

Call xreplace() and cache the result to disk.