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Lesson 19.6 Immutable Dictionary Functions

Since we can loop over dictionaries, that means we probably want to use them in functions with accumulators. In this video we show how to do this and why they are not that much different from lists.

From  Hannah Lee on October 27th, 2020 27 plays

Lesson 18.5 Immutable Table Functions

In this video we show how to write an immutable function on a table of data. In most ways this is no different than writing an immutable function on a list. Except that this time we may need multiple…

From  Hannah Lee on October 27th, 2020 25 plays

Lesson 16.7 For-Loops and Testing

Another control-structure means another video on testing. But if you have following the Rule of Numbers, you will discover that you have enough tests for your for-loop. Instead, as we show in this…

From  Hannah Lee on October 19th, 2020 23 plays

Lesson 16.3 Accumulators

One of the techniques that we say in the previous video was the accumulator variable. In this video we show that this is a general technique used in a fruitful function that requires a for-loop.

From  Hannah Lee on October 19th, 2020 27 plays

Lesson 16.2 For-Loop Design

In this video we show how to use for-loops in function definitions. In particular, we show that we go from a specification to code that uses a for-loop.

From  Hannah Lee on October 19th, 2020 28 plays

Lesson 14.3 Try-Except and the Stack

The except-portion of an try-except statement is only executed when there is an error/crash. But, as we have seen, errors can occur anywhere in the call stack. In this video we show how try-except…

From  Hannah Lee on October 10th, 2020 16 plays

Lesson 8.3 Test Scripts

A good testing plan has many, many test cases, and it can be really tedious to keep testing a function. That is why it would be ideal if we could automate the process. In this video, we introduce the…

From  Hannah Lee on September 24th, 2020 7 plays

Lesson 4.6 Interactive Scripts

Right now, we do not know a lot of Python commands, and so our scripts are pretty boring. But we can make them a lot more interesting with a function that we have already seen: the input function. In…

From  Hannah Lee on September 9th, 2020 11 plays

WA training 041020

From  Irina Zhankov on April 10th, 2020 39 plays

From Einstein's Photoelectric Effect to Band Mapping. (Shen)

2019 Summer School

From  James Overhiser on August 7th, 2019 96 plays