README.md

   1 ## PocketCalclator - Readme
   2
   3 **PocketCalclator** is first of all a study to identify the possiblities to develop simple software tools for mobile devices. These tools shall be platform indipendant, thus it runs entirely on HTML and Javascript
   4
   5 ### Application Taschenrechner
   6
   7 As application, this program *Taschenrechner.html* can ben used by mouse or touchscreen clicks as well as via a keyboard.
   8
   9 The bottom line serves to input the numbers. The functions (currently root/square/ln) also operate on this number. Once an operator (#-/*) is pressed it is copied to the first line where the formular is shown.
  10
  11 Pressing "=" calculates the result, which is shown in the middle line.
  12
  13 The following keys are available:
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  15 * e: to enter exponentials, such as `1e3` which stands for 1*10^3
  16 * "DEL" or key `backspace`: deletes last digit.
  17 * "C" or key `ESC`: deletes input number, formular and result display
  18 * "√" or key "r": calculates the root of the number in the input field
  19 * "x²" or key "S": calculates the square of the number in the input field
  20 * "ln" or key "l": calculates the natural logarithm of the number in the input field
  21 * "STO" or key "s": stores the result to memory
  22 * "RCL" or key "m": recalls the results from memory
  23 * "ANS" or key "a": recalls the last result
  24 * "=" or key "Enter": provides the result of the formular
  25 * "ENG" or key "n": toggles notation between exponential and floating point display
  26
  27 ### License
  28 The entire project is subject to GPL v3.0
  29