NumPy and SciPy are open-source add-on modules to Python that provide common mathematical and numerical routines in pre-compiled, fast functions.
License: Open Source
SciPy and NumPy are open-source libraries mainly used for numerical and scientific computing in Python, offering extensive functionalities for data analysis, while Mathcad is a commercial tool focused on providing a user-friendly interface for mathematical calculations and documentation. The choice between them depends on the user's requirements for programming flexibility versus ease of use in engineering and academic contexts.