I noticed that Ron Jeffries had written about a kata I hadn’t tried before, so I decided to try it. The exercise involves evaluating a polynomial of one variable at a single point. For example: 5x3 + 4x2 + 19x + 3 at the point x = 5 evaluates to 823. Check my arithmetic if you like. How does one write this incrementally and test-first? First things first: if you’ve never tried it, and especially if you’re new to test-first programming, then try it yourself. Take small steps and never wr...
