# Calculator

To use the calculator, tap and select Cogo / Calculator.

To perform a calculation from a numeric field:

1. Tap and select Calculator.

   If the numeric field contains a number, that number is automatically pasted into the calculator.

2. Enter the numbers and functions.
3. Tap to calculate the result.

4. Tap Accept.

   If you opened the calculator from a numeric field, the calculated result is pasted into that numeric field.

Tap Azimuth to open the Compute azimuth form. See Compute azimuth.

Tap Distance to open the Compute distance form. See Compute distance.

Tap V. Dist to open the Compute vertical distance form. Select the From point and the To point. To copy the calculated value to the calculator for use in other calculations, tap Accept.

Tap to change calculator options:

- Select units (degrees, mils, gons).
- Select Standard or RPN (Reverse Polish Notation) mode.
- Select Decimal places to select the number of decimal places to use.

Calculator functions are described below.

Symbol | Function
--- | ---
| Add
| Subtract
| Multiply
| Divide
| Change sign of number being entered
| Equals
| Pi
| Enter
| Show all values on the stack
| Back space
| Options Tap to set the angle method, calculator mode (Reverse Polish Notation (RPN) or Standard), and decimal place display.
| Raise Y to the power of X
| Square
| Square root
| Raise 10 to the power of X
| Enter exponent or change exponent sign
| Reciprocal
| Swap X with Y
| Sine
| Arc Sin
| Cosine
| Arc Cosine
| Tangent
| Arc Tangent
| Log base 10
| Switch Shift state
| Open parenthesis
| Close parenthesis
| Clear all
| Clear entry
| Memory functions
| Polar to rectangular coordinate conversion
| Rectangular to polar coordinate conversion
| Rotate stack down
| Rotate stack up
| Insert degrees, minutes, or seconds separator
| Subtract angles of the form DD.MMSSsss
| Add angles of the form DD.MMSSsss
| Convert from DD°MM'SS.sss or DD.MMSSsss to angle units
| Convert from current angle units to DD°MM'SS.sss