Use the number buttons (0-9) and operator buttons (+, -, *, /) to input basic arithmetic operations.

Press "=" or the "Enter" key to calculate the result.

Use the function buttons (sin, cos, tan, sqrt, etc.) to input advanced mathematical operations.

Press the "(" and ")" buttons or the respective keys to input parentheses for more complex expressions.

Press "MS" or the "M" key to store the current result in memory.

Press "MR" or the "R" key to recall the value stored in memory.

Press "MC" or the "C" key to clear the memory.

The calculator supports keyboard input for most functions.

- Numbers: 0-9
- Operators: +, -, *, /
- Parentheses: (, )
- Memory Store: M
- Memory Recall: R
- Memory Clear: C
- Calculate: Enter
- Clear Result: Escape, Delete, or Backspace