# speedcrunch > A high-precision scientific calculator. > More information: . - Start speedcrunch: `speedcrunch` - Copy the result of the most recent calculation: `Ctrl + R` - Open the formula book: `Ctrl + 1` - Clear the calculator of recent calculations: `Ctrl + N` - Wrap highlighted in parentheses (defaults to wrapping all if nothing selected): `Ctrl + P` - Load a speedcrunch session: `Ctrl + L` - Save a speedcrunch session: `Ctrl + S` - Toggle keypad: `Ctrl + K`