PTC Mathcad worksheets can contain many user and system-defined identifiers such as variables, units, constants, and functions. During worksheet construction, you may accidently, or purposefully, redefine one or more of those identifiers. By using the redefinition warnings functionality in PTC Mathcad Prime 8.0.0.0, these redefinitions are automatically detected on calculation, with visible warnings displayed on regions that contain them. You can toggle the display of these warnings for all or individual categories of identifier.

You can now control the display of borders independently for the header, footer, and page body calculation area of the worksheet. Borders are visible both in page view and in printed documents.

PTC Mathcad Prime 8.0.0.0 includes a new partial derivative operator in the Operators menu.

The combo-box input control was added in PTC Mathcad Express Prime 7.0.0.0. It allows you to control worksheet calculations with easy-to-create, easy-to-use drop-down menus of variable definitions. Multiple variable values can be defined for multiple variables, so in PTC Mathcad Prime 8.0.0.0 we have added the ability to paste multiple variable values directly into the combo-box edit mode. You can copy a selection of values from a matrix, select that same size of data in a combo box and paste. You can also paste into a single value box and the data is pasted from that location down and to the right. In both cases, the combo-box automatically resizes to accommodate the pasted data.