From 1054f749e9769f02c9f66c3b5dbf00fb9134c178 Mon Sep 17 00:00:00 2001
From: Fabian Joswig <fabian.joswig@ed.ac.uk>
Date: Fri, 20 May 2022 11:00:52 +0100
Subject: [PATCH] docs: check for latex availability added to examples.

---
 examples/01_basic_example.ipynb     |  4 +++-
 examples/02_correlators.ipynb       |  8 +++++---
 examples/03_pcac_example.ipynb      |  4 +++-
 examples/04_fit_example.ipynb       | 10 ++++++----
 examples/05_matrix_operations.ipynb |  4 ++--
 examples/06_gevp.ipynb              |  7 +++++--
 6 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/examples/01_basic_example.ipynb b/examples/01_basic_example.ipynb
index 834f9d39..df1d76f2 100644
--- a/examples/01_basic_example.ipynb
+++ b/examples/01_basic_example.ipynb
@@ -21,6 +21,7 @@
    "outputs": [],
    "source": [
     "import numpy as np\n",
+    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import pyerrors as pe"
    ]
@@ -32,7 +33,8 @@
    "outputs": [],
    "source": [
     "plt.style.use('./base_style.mplstyle')\n",
-    "plt.rc('text', usetex=True)"
+    "usetex = matplotlib.checkdep_usetex(True)\n",
+    "plt.rc('text', usetex=usetex)"
    ]
   },
   {
diff --git a/examples/02_correlators.ipynb b/examples/02_correlators.ipynb
index a647162e..e2d2a09a 100644
--- a/examples/02_correlators.ipynb
+++ b/examples/02_correlators.ipynb
@@ -8,6 +8,7 @@
    "outputs": [],
    "source": [
     "import numpy as np\n",
+    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import pyerrors as pe"
    ]
@@ -20,7 +21,8 @@
    "outputs": [],
    "source": [
     "plt.style.use('./base_style.mplstyle')\n",
-    "plt.rc('text', usetex=True)"
+    "usetex = matplotlib.checkdep_usetex(True)\n",
+    "plt.rc('text', usetex=usetex)"
    ]
   },
   {
@@ -480,7 +482,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -494,7 +496,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,
diff --git a/examples/03_pcac_example.ipynb b/examples/03_pcac_example.ipynb
index bf0f0b02..835062a8 100644
--- a/examples/03_pcac_example.ipynb
+++ b/examples/03_pcac_example.ipynb
@@ -7,6 +7,7 @@
    "outputs": [],
    "source": [
     "import numpy as np\n",
+    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import pyerrors as pe"
    ]
@@ -18,7 +19,8 @@
    "outputs": [],
    "source": [
     "plt.style.use('./base_style.mplstyle')\n",
-    "plt.rc('text', usetex=True)"
+    "usetex = matplotlib.checkdep_usetex(True)\n",
+    "plt.rc('text', usetex=usetex)"
    ]
   },
   {
diff --git a/examples/04_fit_example.ipynb b/examples/04_fit_example.ipynb
index 026cca2d..72d62e9e 100644
--- a/examples/04_fit_example.ipynb
+++ b/examples/04_fit_example.ipynb
@@ -6,9 +6,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import pyerrors as pe\n",
     "import numpy as np\n",
-    "import matplotlib.pyplot as plt"
+    "import matplotlib\n",
+    "import matplotlib.pyplot as plt\n",
+    "import pyerrors as pe"
    ]
   },
   {
@@ -18,7 +19,8 @@
    "outputs": [],
    "source": [
     "plt.style.use('./base_style.mplstyle')\n",
-    "plt.rc('text', usetex=True)"
+    "usetex = matplotlib.checkdep_usetex(True)\n",
+    "plt.rc('text', usetex=usetex)"
    ]
   },
   {
@@ -439,7 +441,7 @@
    "hash": "916dbcbb3f70747c44a77c7bcd40155683ae19c65e1c03b4aa3499c5328201f1"
   },
   "kernelspec": {
-   "display_name": "Python 3.8.10 64-bit",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
diff --git a/examples/05_matrix_operations.ipynb b/examples/05_matrix_operations.ipynb
index a49a7ee0..926d1734 100644
--- a/examples/05_matrix_operations.ipynb
+++ b/examples/05_matrix_operations.ipynb
@@ -393,7 +393,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -407,7 +407,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,
diff --git a/examples/06_gevp.ipynb b/examples/06_gevp.ipynb
index e969008c..268346f6 100644
--- a/examples/06_gevp.ipynb
+++ b/examples/06_gevp.ipynb
@@ -7,6 +7,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "import matplotlib\n",
     "import matplotlib.pyplot as plt\n",
     "import pyerrors as pe"
    ]
@@ -18,7 +19,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "plt.style.use('./base_style.mplstyle'); plt.rc('text', usetex=True)"
+    "plt.style.use('./base_style.mplstyle')\n",
+    "usetex = matplotlib.checkdep_usetex(True)\n",
+    "plt.rc('text', usetex=usetex)"
    ]
   },
   {
@@ -305,7 +308,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },