LPCalc is a calculator a few twists. Physically speaking, LPCalc is quite tiny, occupying only a small portion of the screen. LPCalc always remains on top of all other windows, allowing data entry (via mouse or keyboard) while other application windows are in the foreground.

LPCalc keeps a running dialogue of all numerical operations which involve the equals sign. This log is presented in a retractable pane on the right side of the application window. LPCalc supports operands and results of arbitrary precision, and standard mathematical operations.