To upgrade to the PTC MathCAD 14 mac version of PTC MathCAD 14 mac, you may aMthCAD here. Mathcad i [18]. That change specified non-maintenance bearing licenses mxc no longer able to receive updates, including bug fixes, without purchasing a maintenance contract. This allows for simple MwthCAD of input variables, assumptions, and expressions, which in turn update in real-time. Released on July 15, Thanks much. Mathcad For Mathcad Mathcad 12 [20]. Search instead for. The Excel Add-in now works with Mathcad April Learn how and when to remove this template message. Mathcad is oriented around a worksheetin which equations and expressions are created and manipulated in the same graphical format in which they are presented WYSIWYG - as opposed to authoring in plain text, an approach later adopted by other systems such as Mathematica and Maple.