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Use the following BibTeX entry to cite this work:

@INPROCEEDINGS{DVMB2023, author={Doorn, Niels and Vos, Tanja and Marín, Beatriz and Barendsen, Erik}, booktitle={2023 IEEE Conference on Software Testing, Verification and Validation (ICST)}, title={Set the right example when teaching programming: Test Informed Learning with Examples (TILE)}, year={2023}, volume={}, number={}, pages={269-280}, doi={10.1109/ICST57152.2023.00033} }

Working with expressions

Let us practice a bit with writing expressions. Implement a program that asks the user for two numbers, \(x\) and \(y\) and calculates the following:

\[x+y\]
\[(x+y)x\]
\[xx + yy\]
\[x^{5y}\]
\[3x^5-5x^3+2x-7\]
\[yx^5-(y+1)x^3+5x-y\]
\[x^{yy+2^y}\]

Test your program (and your math skills) by:

First doing he exercises by hand for \(x=4\) and \(y=6\) to obtain the expected outputs.
Second, check the answers of your program with your expected outputs.

We ask the students to do the calculations by hand such that they
can use those to test their program. It makes them aware of the need
for an oracle with which they need to check the outputs.

Test Informed Learning with Examples

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Working with expressions