Apply arithmetic to number text.
 
  Program name : CALT.LSP

  Sometimes We need to know the result of the sum or product of numbers in a drawing. 
At that time, We usually use a calculator. The program allows you to selects the numbers in the drawing and adds them or sum, difference, product, and division. 
You can also write the results in a drawing . Operations are cumulative. 
That is, it shows the previous operation result and waits for the next operation. 
The following instructions will help you understand.

 
 Example
Summation<Select text> :                [Select text '423.500']
Total = 423.500
Sum / + / - / / /Insert/Exit: *                [Choose multiply function]
Total = 3324.475                                [Current result is shown]
Sum / + / - / / /Insert/Exit: i                [Choose 'i' option to write result on the drawing]
Number of digits of right of decimal point (0~8): <3>: 3 [Enter Number of digits of right of decimal point]
Pick insert point:                      [Pick insert point] (Alignment is right) 



 Example-2
Summation/<select text>: s     [Choose 's' option to sum several numbers]
Select text:                    [Select '3324.475', '1986.050', '981.250', '745.750', '404.275' on screen]
Select object:                         [Type Enter key to finish the selecting]
5 Found
Summation: 7441.800                     [Current result is shown]
Sum / + / - / / /Insert/Exit: i        [Choose 'i' option to write result on the drawing]
Number of digits of right of decimal point (0~8): <3>: 3?       [Enter Number of digits of right of decimal point]

Pick insert point:                      [Pick insert point] (Alignment is right)