Working with Calculator

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Write your expression first and then evaluate

To evaluate the following expression, for example:

(1+((2*3)^4-5)+6)/7

Simply type in the expression in the calculator Expression area, press enter and you are done. The result will be printed in the calculator Result area.

Fig: Expression and result area

Edit your expression if you make a mistake

For example, in the above expression, if you forget to place your brackets in the appropriate positions simply edit the expression. Standard windows editing keys (Arrow keys, Delete, Backspace, Insert, etc.) work in the expression area.

Calculate and convert with unit

Calculate physical quantities with unit writing directly in calculator Expression area.

The resulting unit will be displayed in default standard unit. For example, result of the expression ft.+ m. will be displayed as 1.3048 m. as m. is the default unit for length.

Expression: ft. + m.
Result: 1.3048 m.

However, you can convert the result to a different unit using to operator as below:

Expression: ft. + m. to yd.
Result: 1.42694663167104 yd.

Note that the expression unit and conversion unit after to operator must be dimensionally homogeneous. Otherwise a dimension conflict will occur.

Fig: Convert using "to" operator

Clear calculation

Click on Clear button on the Calculator keyboard or press [Ctrl+L] to clear out both the expression and result area and to start writing a new expression.

You can also select Clear Calculation option from the Result and history area context menu that pops up when you right click on result area or history area when visible.

Use calculator context menus

Calculator has three context menus 1) Expression area context menu 2) Result and history area context menu and 3) Form context menu.

Fig: Expression area context menu

Expression area context menu pops up when you [Right click] on the calculator Expression area. It offers you standard functions such as: Undo, Cut, Copy, Paste, Delete, and Select All to edit your expression.

Fig: Result and history area context menu

Result and history area context menu pops up when you right click on Result area or History area when visible. The menu offers the following options:

• Calculate - Alternative to [Enter] key or Enter Calculator keyboard button. When pressed, expression is evaluated and result is displayed in the Result area.
• Send to Document - To send the expression to the Input document.
• Copy to Clipboard - To copy the result to the windows clipboard.
• Clear Calculation - To clear expression and result from the calculator.
• Clear History - To clear the History area.
• Show History/Keyboard - To display History area or Calculator keyboard as applicable.
• Standard Size - To resize calculator to one of the standard sizes. There are 5 standard sizes to chose from when calculator is in floating mode. There are two standard sizes in docked mode.
• Check Keywords - When checked calculator check and reformat keywords entered in the Expression area.

Fig: Form context menu

Form context menu pops up when you right click on any exposed area other than Expression area, Result area, Calculator keyboard, and History area. When calculator is in docked mode, [Right Clicking] on the title bar also displays this context menu. This context menu offers the following options:

• Dock - To dock the calculator
• Undock - When selected, calculator stays on top of its main window
• Float - Calculator stays always on top of every application
• Free - Calculator stays free and can go behind and come on top
• Hide - To hide the calculator
• Show - Choose Calculator from View menu of the main window when it is hidden

Select expression from history

Dicom preserves the calculation in History area. You can select your previous expression from history. To display History area click on the Show History on the context menu. History is displayed in place of Calculator keyboard.

Fig: History area in-place of keyboard

To select an expression from the history - [Double Click] on the expression.

To display the keyboard and hide the history - click on Show Keyboard from the Result and history area context menu.

To clear out the history - select Clear History option from the same context menu.

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