**Guest blog post by Cat McClintock**
Earlier this year, John Sheehan talked on this blog about how PTC’s leading 3D CAD software and Engineering Calculations software work together. “Hopefully readers are aware of the bidirectional integration of the two products which has existed…since 2006,” he wrote. Dimensions and parameters can be sent from PTC Creo to PTC Mathcad where it can run complex or even simple calculations and return values to PTC Creo where they can be tied to dimensions and parameters.
[Ed - here's a short demonstration of PTC Creo Parametric and PTC Mathcad working together to design a transmission shaft]