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Thursday / Oct 20th, 202210/20/2022

Challenges

Featured Challenge:
#174 — AppleSoft Basic Fractal Tree

Take a trip back in time and let's learn all about GR (graphics) and HGR (high resolution graphics) in AppleSoft BASIC on a restored Apple II+ computer! Can we render a fractal tree?

sep 12, 2022

AppleSoft Basic Fractal Tree

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nature of code

In Part 1 of this multi-part coding challenge, I introduce the classic computer science problem of the Traveling Salesperson (TSP) and discuss the pitfalls with a brute force solution. In Part 2, I discuss Lexicographic Ordering and demonstrate one algorithm to iterate over all the permutations of an array. In Part 3, I apply this algorithm to a brute-force solution of the TSP problem. Every single route permutation is checked one by one. In Part 4, I attempt to create a solution to the TSP problem with a genetic algorithm, and then I add a “crossover” algorithm in Part 5.

Traveling Salesperson

In this 4th of July themed coding challenge, I build an HTML5 canvas fireworks simulation from scratch using the p5.js JavaScript library. I also show how to use Processing to create 3D Fireworks.

Fireworks