This calculator is nowhere near as stable as the TI calculator app. If you manage to input incorrect operation the RPN calculator will crash and all data stored in the RPN calculator will be lost. For any lengthy calculation the TI calculator app should be used.

• All physical math buttons (+ - * / ln log sqrt etc.)
• Pi and e constants
• Trig functions
• Complex Math (Only supports rectangular form)

Use the TI-nspire student software for your calculator to upload RPN.tns to the MyWidgets folder on your calculator. The calculator will appear as a widget under the Add Widgets menu when you add a page to your document.

• Any external function (e.g. rand() or any other function from the catalog)
• Symbolic math
• Gradians
• Radians (only hacked in)
• Possibly complex math. Only tested simple operations. Only supports rectangular form

• Push - enter
• Pop - ↵ (return)
• Swap - tab