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Source  : 33cf6a0
Branch  : main
Author  : scottan <33283688+Scottan@users.noreply.github.com>
Time    : 2026-05-06 10:46:25 +0000
Message : Merge pull request #108 from UoMResearchIT/107-correct-output-for-nan-test-in-defensive-programming

Update 04-defensive_programming.md

Author: actions-user

04-defensive_programming.md

@@ -256,7 +256,7 @@ check_sign(val)
 ```
 
 ```output
-Value:  nan is a number.
+Value: nan is negative.
 ```
 
 However numpy does provide the `isnan()` function for testing if a value is NaN. Add an assertion test using this which will raise and error if the value is NaN.

md5sum.txt

@@ -7,7 +7,7 @@
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