PTC Mathcad Prime 12 - Perform, Analyze and Share Your Most Vital Calculations. Engineering Math software allows you to perform, analyze, and share your most vital calculations. Calculations are the heart of your engineering information. You and your team must be able to find, reuse, and share this important intellectual property. Using PTC Mathcad, all formulas and mathematical terms make calculations much easier to check than Microsoft Excel. PTC Mathcad has all the ease of use and familiarity of your engineering notebook - combined with live mathematical notation, unit intelligence, and powerful calculation capabilities. This engineering math software lets you present your calculations with plots, graphs, text, and images in a single document.