The header frame contains the logotype, a description of the application and four buttons.

Run calculation

Runs calculation and presents the result in the Results frame.

Print

Reset

...

Show saved projects list

Clicking this button reveals the saved projects (calculations) previously saved by the user. It will also rename itself to Hide saved projects list.

Selecting a project (calculation) from the list will load all the information, give the user the option to save it as a new project and/or delete the project.