MIGHTY CALCULATORS
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All calculators could be operated independently. Put your Mathematical Expression in ( I N P U T ) area. Use Mouse
right button to UNDO any action.
Click the result BUTTON   'RESULT >>'  or press ENTER to see the "result" on the right side.
Click the erase BUTTON   'CLEAR ALL>>'   to erase entries.

HELP for CALCULATORS
 To change colors for INPUT & OUTPUT areas: >>
  WHITE   YELLOW      RED      DEFAULT
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