What does Rcm mean on a calculator?

On a calculator, "Rcm" typically stands for "Recalculate," indicating a function to recalculate or refresh the current computation. It can also refer to "Radian centimeters," a unit used in specific contexts involving geometry or trigonometry, where radian measures are combined with a metric unit. The exact meaning can vary by calculator model, so it's best to refer to the user manual for clarification.