I don't know if this could be considered "learning" in the sense that you mean, but I chose code that I wrote in a familiar language and re-wrote it in Cobol. I

I don't know if this could be considered "learning" in the sense that you mean, but I chose code that I wrote in a familiar language and re-wrote it in Cobol. It was fun and I end up learning a lot. https://github.com/victorqribeiro/perceptronCobol https://github.com/victorqribeiro/perceptronCobol