You'd have to create one. In FileMaker 13, this might be pretty easy to set up using a Popover to display the buttons to click for your calculator.
Would you give me tips how to create this
This was not as simple as I thought that it might be, but it intrigued me and I saw this as possibly useful in a current project so I set up a new demo file. It's a simple 4 function calculator but you can add buttons to add more functions using the existing buttons, scripts and script parameters as examples.
Some key details:
The digit and operator buttons use the same script, but the value of the button is passed as a script parameter. This script builds a calculation expression in the display that uses the same syntax as if you entered this into a Specify Calculation dialog.
The = button's script uses the evaluate function to replace the expression in the display with its computed value. It also sets a global variable so that if the user next clicks/taps a number key, the text in the display is replaced with this new value, but operators don't replace the value.
A script trigger blocks typing data directly into the display without keeping you from selecting and copying the data to the clipboard.
Dear Sir ,
After making the calculator popuover in the existing layout. Then place the button option on a field and give command value to popup the calculator display. it display now I want the display value of calculator (what ever calculation I have worked )to be insert in the selected field of button.
Use an OnObjectExit script trigger on the PopOver Frame (not the PopOver button) to perform a script that uses set field to copy the value of the Display field into the field you have circled.