The best Numerical Computation alternative to Python is Julia, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 50 alternatives to Python, but unfortunately only one of them is a Numerical Computation Software.
Python alternatives are mainly Compilers, but if you're looking for
Numerical Computation Software or Programming Languages you can filter on that. You can also filter by region, for example
EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Python.
Julia competes with Python