Author: Khan Academy via YouTube
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Trace how the computer executes a while loop step-by-step. Practice how to use the loop variable stop, start, and update values to count the number of loop repetitions. View the program used in this video at: https://www.khanacademy.org/python-program/tracing-loop-execution/5242191622881280

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TIMESTAMPS:
00:00 – 01:03 : counting loop repetitions
01:04 – 01:28 : before the loop
01:29 – 02:56 : first loop iteration
02:57 – 03:27 : second loop iteration
03:28 – 03:55 : third loop iteration
03:56 – 04:20 : fourth loop iteration
04:21 – 04:55 : loop termination

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