io

io#

import ampform_dpd.io

Input-output functions for ampform and sympy objects.

This module extends AmpForm’s aslatex() function. You can register more implementations as follows:

>>> from ampform_dpd.io import aslatex
>>> @aslatex.register(int)
... def _(obj: int) -> str:
...     return "my custom rendering"
>>> aslatex(1)
'my custom rendering'
>>> aslatex(3.4 - 2j)
'3.4-2i'

This code originates from ComPWA/ampform#280.

as_markdown_table(obj: Sequence) → str[source]#: Render objects a str suitable for generating a table.

perform_cached_lambdify(expr: Expr, backend: str = 'jax', directory: str | None = None) → PositionalArgumentFunction[source]#

perform_cached_lambdify(expr: Expr, parameters: Mapping[Symbol, ParameterValue], backend: str = 'jax', directory: str | None = None) → 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"!
directory – The directory in which to cache the result. If None, the cache directory will be put under the home directory, or to the path specified by the environment variable SYMPY_CACHE_DIR.

Tip

For a faster cache, set PYTHONHASHSEED to a fixed value.

io

Contents

io#