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Basics

Starting the RPNcalculator

A doubleclick on the file 'rpncalc.html' in the subdirectory 'calc' will load an instance of the RPNcalculator in the standard browser of your pc. All files of the RPNcalculator are located in the subdirectory 'calc' and can be copied to an arbitrary folder without affecting the functionality.

The input field of the RPNcalculator initially shows the marked command 'popup'. Pressing 'Enter' will perform this command and open a new instance of the RPNcalculator in a popup-window. By entering values you start working with the active instance. If you want to work exclusively with the instance in the popup window, you may close the instance opened in the browser.

Arithmetical calculations

Problem:
Log( 5 / (35) )
Procedure:
Input: Explanations:
5 The value 5 (numerator) is in the input field. The input may be done using the keyboard of your pc or the numerical block of the program.
Enter The value 5 (numerator) is transfered into the first stack. The input field is now free to get the next value. 'Enter' can be done using the keyboard of your pc or the appropriate button of the program.
3 The value 3 (denominator) is in the input field.
Enter The value 3 (denominator) is transfered into the first stack and pushes the values of the stack one level upwards.
5 The value 5 (exponent of the denominator) is in the input field. Here the value 5 can also be obtained performing a doubleclick on the second stack (containing 5).
Enter The value 5 (exponent of the denominator) ist pushed into the first stack.
yx The denominator 35 = 243 is calculated and pushed into the first stack. Beside of the stack the actual association to the variables 'x' and 'y' is shown. The command can be performed with the program button or using your keyboard (Input of 'yx' and 'Enter'). The keyboard command 'yx' is shown as tooltip when holding the mouse over the button yx. Using the button of the programm makes the use of the last 'Enter' unnecessary.
/ The fraction 5 / 243 = 0,02057... is calculated and pushed into the first stack. The command can be performed with the program button or by pressing the '/' key on your keyboard. By pressing '/' the command is executed immediately without waiting for 'Enter' according to the HP-conventions.
log The result Log(0,02057...)=-1.6866... is calculated and pushed into the first stack. The command can be performed with the program button or using your keyboard (Input of 'log' and 'Enter'). The keyboard commands are case sensitive and all lower case.

Handling the RPNcalculator can be done using the keyboard of your pc or pressing the buttons of the program. The keyboard commands must not be used as variable name.

To input an exponential value with the basis 10 (e.g. -1,2e-3 = -0,0012) you can type