VexMath

Math library for PROS projects focused on speed. Currently implements:

• various fast/vectorized pseudo-random number generators
• vectorized versions of common math functions (trig, square root, etc.)
• fast normally-distributed prng generator (modified float-based implementation of ziggurat algorithm)
• simple Entropy class to generate random numbers heavily based on veranda

Benchmarking

• Vectorized xoshiro generator around 2.55x faster than normal xoshiro
• Vectorized trig taylor approximation around 1.5x faster than normal alternative

Full Benchmarking results can be found in benchmarks/results.md

Credits

• Gavin Niederman - Veranda: A rand RNG source for vexide programs
  • Source code
• Julien Pommier - Simple ARM NEON optimized sin, cos, log and exp
  • Blog
  • Source code
• Christopher D. McFarland - Fast PRNG: an Exponentially- and Normally-distributed PseudoRandom Number Generator
  • Paper
  • Source code