Create Your Own Calculator In Notepad

@echo off

title Batch Calculator by i5_h4ck3r... Indian Lion

color 1f

:top

echo --------------------------------------------------------------

echo Welcome to Batch Calculator by i5_h4ck3r... Indian Lion

echo --------------------------------------------------------------

echo.

set /p udefine=

set /a udefine=%udefine%

echo.

echo = %udefine%

echo --------------------------------------------------------------

pause

cls

echo Previous Answer: %udefine%

goto top

pause

exit

save this ........ With .bat extension......