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Source  : 8ed39d8
Branch  : main
Author  : S Jaffa <SJaffa@users.noreply.github.com>
Time    : 2025-11-17 13:56:53 +0000
Message : Merge pull request #44 from UoMResearchIT/quantity_support_in_units_and_quantities

quantity_support call in 06-units_and_quantities.md

Author: actions-user

06-units_and_quantities.md

@@ -323,6 +323,7 @@ Support has been added for using the units information in matplotlib plots. To u
 
 ```python
 from astropy.visualization import quantity_support
+quantity_support() # see note below
 ```
 
 We will create a numpy array of the angles between 0-180 degrees, and plot the sin of these:
@@ -344,6 +345,17 @@ plt.plot(angles.to(u.rad), np.sin(angles))
 
 ![](fig/sin_curve_rad.png){alt='Plot of sin curve for degrees between 0-180'}
 
+::::::::::::::::: callout
+NOTE
+The call to `quantity_support()` is required to "patch" `matplotlib` to recognize the `astropy.units`, and it will affect anything you plot from that point onward. 
+If you only need `quantity_support` for some plots, you can use a _context manager_:
+
+```python
+with quantity_support():
+  plt.plot(angles, np.sin(angles))
+```
+:::::::::::::::::::::::::
+
 ## Temperature
 
 Each of the temperature scales is considered as using an irreducible unit in standard usage. As a consequence of this we need to always specify that we are using the `u.temperature` equivalences when we convert between these:

md5sum.txt

@@ -9,7 +9,7 @@
 "episodes/03-numpy_essential.md" "8be0e5afb556d4f597f31f059488dd15" "site/built/03-numpy_essential.md" "2025-04-15"
 "episodes/04-software_package_management.md" "62db2ba2a4291e16d2bdd07b77bfc961" "site/built/04-software_package_management.md" "2025-04-15"
 "episodes/05-defensive_programming.md" "357bca7361e09066ad71393e21ad0c74" "site/built/05-defensive_programming.md" "2025-04-15"
-"episodes/06-units_and_quantities.md" "f02e82346d2f3b9675c133921f1f922f" "site/built/06-units_and_quantities.md" "2025-04-15"
+"episodes/06-units_and_quantities.md" "aa0215a27f41d8c99db495c727c56051" "site/built/06-units_and_quantities.md" "2025-11-17"
 "episodes/07-pandas_essential.md" "5dde09b1125f8c30156ae314b5fdcfe1" "site/built/07-pandas_essential.md" "2025-04-15"
 "instructors/instructor-notes.md" "a59fd3b94c07c3fe3218c054a0f03277" "site/built/instructor-notes.md" "2025-04-15"
 "learners/discuss.md" "2758e2e5abd231d82d25c6453d8abbc6" "site/built/discuss.md" "2025-04-15"