Touch-It Virtual Keyboard Version 4.9.2
Calculator

These keys allow to create a calculator. Only the Paste button send characters to the focused window.

Calculator key
  • 0..9 : Numbers.
  • 00 : Equivalent to pressing twice the 0.
  • 000 : Equivalent to pressing three times the 0.
  • . : Numbers.
  • 0..9 : Decimal separator.
  • +/- : Change the sign.
  • +-*/= : Basic operations.
  • C : Clear.
    • 1st time pressed, erase last input.
    • 2nd time pressed, clear full buffer.
  • RM : Recall memory.
  • CM : Clear memory.
  • M+ : Add to memory.
  • M- : Substract from memory.
  • % : Pourcent.
  • Paste : Send the displayed value to the focus window.
  • Backspace : Erase last input digit.
  • Digits : Change the number of digit shown after the decimal separator. Note however that the buffered value is not rounded.
Calculator Display
This "key" is the calculator display and has no parameter.
Calculator formula This key is an interpreter of mathematical expressions. Result is the value currently displayed.
  • Operators : +-*/^
  • Functions : cos, sin, tg, ctg, abs, sgn or sign, sqrt, ln, exp, arcsin, arcos, arctg, arcctg, sh, ch, th, cth, heaviside.

Angles are in radian. To compute angles in degrees, multiple the result by PI/180.

When pressing the Validate button, a message pops up if the formula is incorrect.

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