In retrospect, Alex wished he had explored other options, such as:

Mathcad 15 is a software application developed by PTC (Parametric Technology Corporation) that allows users to create, edit, and share mathematical calculations, data analysis, and visualizations. The software provides a flexible and intuitive interface for performing a wide range of mathematical operations, including algebra, calculus, differential equations, and signal processing.

Downloading cracked software comes with several risks, including: