From 6fb8f32375680ad2f86c0280c2f1e5dd8ca97644 Mon Sep 17 00:00:00 2001
From: Daniel Shapero <shapero.daniel@gmail.com>
Date: Thu, 8 Aug 2024 14:33:03 -0700
Subject: [PATCH] Style + unicode

---
 src/zmsh/__init__.py | 5 ++++-
 src/zmsh/delaunay.py | 4 +---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/zmsh/__init__.py b/src/zmsh/__init__.py
index 2931324..816bb49 100644
--- a/src/zmsh/__init__.py
+++ b/src/zmsh/__init__.py
@@ -3,7 +3,10 @@
 from .geometry import compositions, Geometry
 from .convex_hull import ConvexHullMachine, convex_hull
 from .delaunay import (
-    DelaunayMachine, delaunay, ConstrainedDelaunayMachine, constrained_delaunay
+    DelaunayMachine,
+    ConstrainedDelaunayMachine,
+    delaunay,
+    constrained_delaunay,
 )
 from .plotting import visualize
 
diff --git a/src/zmsh/delaunay.py b/src/zmsh/delaunay.py
index a3566f7..55c80ce 100644
--- a/src/zmsh/delaunay.py
+++ b/src/zmsh/delaunay.py
@@ -103,9 +103,7 @@ def _faces_cross(x1, x2):
 class ConstrainedDelaunayMachine:
     def __init__(self, geometry: Geometry):
         if geometry.dimension != geometry.topology.dimension + 1:
-            raise ValueError(
-                "Starting geometry must be a d-surface in R^{d + 1}"
-            )
+            raise ValueError("Starting geometry must be a d-surface in Rᵈ⁺¹")
 
         if (geometry.topology.dimension != 1) or (geometry.dimension != 2):
             raise NotImplementedError(