[PocketCalculator.git] / README.md

## PocketCalclator - Readme

**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

### Application Taschenrechner

As application, this program *Taschenrechner.html* can ben used by mouse or touchscreen clicks as well as via a keyboard.

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.

Pressing "=" calculates the result, which is shown in the middle line.

The following keys are available:

* e: to enter exponentials, such as `1e3` which stands for 1*10^3
* "DEL" or key `backspace`: deletes last digit.
* "C" or key `ESC`: deletes input number, formular and result display
* "√" or key "r": calculates the root of the number in the input field
* "x²" or key "S": calculates the square of the number in the input field
* "ln" or key "l": calculates the natural logarithm of the number in the input field
* "STO" or key "s": stores the result to memory
* "RCL" or key "m": recalls the results from memory
* "ANS" or key "a": recalls the last result
* "=" or key "Enter": provides the result of the formular
* "ENG" or key "n": toggles notation between exponential and floating point display

### License
The entire project is subject to GPL v3.0
Commit	Line	Data
3cec503f	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:
	14
	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