Calculator This is a scientific calculator, has memory, works with both degrees and radians, calculates powers and roots. The calculator allows you to perform logarithmic and trigonometric operations such as sine, cosine, tangent and the inverse and corresponding hyperbolic of them. Use memory function for calculating cumulative totals. [M+]: Will add displayed value to memory. [MR]: Will recall the value stored in memory. [M-]: Subtracts the displayed value from memory. Be sure select the angle unit (Deg or Rad) before beginning any calculation. By default angle unit is set as Degree Perform multiple operations together.