Get Started Calculating in Calculator

Dicom Calculator is to quickly evaluate mathematical expressions. You can enter and edit expression using computer keyboard or Dicom Calculator Keyboard. Result of the expression can be copied and used elsewhere. The result is also stored in memory for further manipulation if necessary.

Open Calculator

If Calculator is not already open, from the menu select View / Calculator to open it. Depending on the startup mode, Calculator size, position and docking condition may vary.

Write Expression

Write your expression in the Expression Area. Expression Area is the topmost editable zone on the calculator. You may use computer keyboard or click on mouse buttons on the Calculator Keyboard to key-in.

To add 1 and 2 you need to write: 1+2 in the expression area. You can also write dimensional expression in calculator. For example, 3 ft. + 2 m. to m. will evaluate to 2.9144 m.

The "+" symbol is an operator, used to add two numbers or units. Following are some Dicom operators to perform common calculation.

Table: Common Dicom Operators
Operator Operation
+ Addition
- Substraction
* Multiplication
/ Division
^ Exponentiation
** Exponentiation

Tips: You can use right mouse button to click on the Calculator Keyboard to avoid pressing Shift key.

Evaluate Expression

You can evaluate expression in the following way:

  1. Press [Enter] key on the computer keyboard, or
  2. Press Enter or Ent key on the Calculator Keyboard, or
  3. Click on the Result area of the Calculator, right click to display the context menu. Select Calculate, or
  4. From the Dicom main menu select Calculator / Calculate.

Calculator displays the result of an expression in the Result Area.

Clear Expression

To clear an expression and its result do any one of the following:

  1. Press Clear on the Calculator Keyboard, or
  2. Click on the Result area of the Calculator, right click to display the context menu. Select Clear Calculation, or
  3. From the Dicom main menu select Calculator / Clear Calculation, or
  4. If Dicom main window is active, you can also press [Ctrl+L] to clear

See also: For a complete list of operators see Dicom Operators. To know how to write Dicom expressions see Rules of Writing Expression. To know more advanced features of Calculator see Working with Calculator.