cff-version: 1.2.0
message: "If you use this software, please cite it as below."
title: Formulate
abstract: >-
  Easy conversions between different styles of expressions. Formulate converts
  in either direction between ROOT (TTreeFormula) and numexpr style
  expressions, and can also render a parsed expression as plain Python using
  NumPy functions. It needs neither ROOT nor numexpr installed, and it knows
  the places where the two languages disagree.
type: software
authors:
  - family-names: Rios-Tascon
    given-names: Andres
    orcid: "https://orcid.org/0000-0003-3282-2634"
  - family-names: Eschle
    given-names: Jonas
    orcid: "https://orcid.org/0000-0002-7312-3699"
  - family-names: Burr
    given-names: Chris
    orcid: "https://orcid.org/0000-0002-5155-1094"
  - family-names: Roy
    given-names: Aryan
    email: aryanroy5678@gmail.com
repository-code: "https://github.com/scikit-hep/formulate"
url: "https://formulate.readthedocs.io/"
license: BSD-3-Clause
doi: 10.5281/zenodo.22117448
version: 1.1.0
date-released: "2026-08-26"
keywords:
  - python
  - expressions
  - ROOT
  - TTreeFormula
  - numexpr
  - numpy
  - scikit-hep
  - high energy physics