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Source  : 694ee06
Branch  : main
Author  : scottan <33283688+Scottan@users.noreply.github.com>
Time    : 2026-05-06 10:46:55 +0000
Message : Merge pull request #111 from UoMResearchIT/109-correct-calculation-in-units-and-quantities

109 correct calculation in units and quantities

Author: actions-user

05-units_and_quantities.md

@@ -104,7 +104,7 @@ This enables the use of arithmetic operations when quantities have compatible un
 
 ```python
 distance_start = 10 * u.mm
-distance_end = 23 * u.km
+distance_end = 20 * u.km
 length = distance_end - distance_start
 print(length)
 ```
@@ -349,6 +349,8 @@ angle in degrees: 90.0; and in radians: 1.5707963267948966
 Now we can pass the angle directly to `np.sin` without having to convert directly to radians:
 
 ```python
+import numpy as np
+
 print(f'sin of 90 degrees is: {np.sin(angle)}')
 print(f'sin of pi/2 radians is: {np.sin(1.57079632)}')
 print(f'sin of 90 degrees is not: {np.sin(90)}')
@@ -376,7 +378,10 @@ angles = np.arange(181) * u.deg
 ```
 
 ```python
+import matplotlib.pyplot as plt
+
 plt.plot(angles, np.sin(angles))
+plt.show()
 ```
 
 ![](fig/sin_curve_deg.png){alt='Plot of sin curve for degrees between 0-180'}

md5sum.txt

@@ -8,7 +8,7 @@
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 "episodes/04-defensive_programming.md" "ce45abd6568655cc3d9ad19c15be27db" "site/built/04-defensive_programming.md" "2026-05-06"
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 "episodes/06-pandas_essential.md" "b1059ad5fe7b7c4fcaf16c49e8e44bc5" "site/built/06-pandas_essential.md" "2026-04-23"
 "episodes/07-software_package_management.md" "bad70f7e80ca5eef51b9303b81e5d717" "site/built/07-software_package_management.md" "2026-04-24"
 "instructors/instructor-notes.md" "a59fd3b94c07c3fe3218c054a0f03277" "site/built/instructor-notes.md" "2025-04-15"