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Yeah, that one wasn't too hard but it's nice to have it to check your work. I didn't go into it in the post, but the real power of SymPy is its cse() function,
by a1k0n 6y ago
Yeah, that one wasn't too hard but it's nice to have it to check your work. I didn't go into it in the post, but the real power of SymPy is its cse() function, which I used to do all the common subexpression elimination for the integer math version at the bottom.
- Donald 6y agodo you have an example?
- creata 6y agoYou can find a small example for generating CSE'd C code for a sympy expression at https://stackoverflow.com/questions/22665990/optimize-code-generated-by-sympy https://stackoverflow.com/questions/22665990/optimize-code-g... . I think the built-in code generator is a bit strange, though: for example, it always prints integers as integers, and not as floats depending on the context, so code often doesn't typecheck.
- a1k0n 6y agoI tweeted a screenshot of the Jupyter Notebook session I used to create the code at the bottom: https://twitter.com/a1k0n/status/1301261285800030208 https://twitter.com/a1k0n/status/1301261285800030208