From a242f8c46b66089ecb589e8b9064aac8e24a070c Mon Sep 17 00:00:00 2001
From: "Benjamin A. Beasley" <code@musicinmybrain.net>
Date: Wed, 7 Feb 2024 08:24:26 -0500
Subject: [PATCH] =?UTF-8?q?Add=20a=20=E2=80=9Cderivations=E2=80=9D=20extra?=
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Use an extra to declare optional dependencies (currently, sympy) that
are only used for the derivations.
---
 pyproject.toml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index 4a6ef99..8ae2e20 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,6 +33,11 @@ dependencies = [
     "numpy >=1.15",
 ]
 
+[project.optional-dependencies]
+derivations = [
+    "sympy",
+]
+
 [tool.setuptools.packages.find]
 include = ["transforms3d*"]