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edit tape
edit tape
download as *.txt file
erase contents of tape
print tape
 

Calculator - using the calculator and functions

The online scientific calculator with advanced functions is displayed primarily, clicking on the standard calculator link will display the free online mathematical calculator.

You can operate the online calculator directly from your computer's numerical keyboard, as well as using the mouse. Pressing the Esc or Delete key will erase the value displayed in the entry field.

For the purpose of checking your work, mathematical calculations entered into the online calculator can be left displayed on the tape (i.e. the review window next to the online calculator).

The contents of the tape can be edited (erase parts of the calculation, add a description), printed by clicking "print", saved to a text file by clicking "save" or deleted by clicking "delete".

saves the contents of the tape to a text file
Turns the tape into an editable format where you can add text, erase some calculations, or add comments.
 
Save all text on the tape
Concludes the editing process and saves the contents of the tape
 
Saves and downloads the contents of the tape to a text file
Saves and downloads the contents of the tape to a text file
 
erase contents of tape
Erases the contents of the tape.
 
Prints all text and calculations displayed on the tape
Prints all text and calculations displayed on the tape.
 

Calculator - special button functions

Button Function
%

Display sum result as a percentage. To calculate 5 percent of the base 200, enter the number 200 and press the * button, enter the number 5 as the second number and press the % button. The result will be 10. To add the percent to the base, enter the number 200 and press the + button, enter the number 5 as the second number and press the % button. The result will be 210.


For example:

200+5% = 210
200-5% = 190
200*5% = 10
200/5% = 4000 (base calculation)
rate

Exchange rate conversions. To convert $ to EURO, enter the current exchange rate, for example 1.3 (exchange rate 1€ = 1.3 $) and press the 'rate' button. To calculate the amount of € I will receive, enter the amount of $ and press the € button. To calculate the amount of $ I will receive, enter the amount of € and press the $ button

Calculator - hotkeys

Button Klávesová skratka Function
MS
S Writes the entered number to the memory. If a number was previously stored in the memory, this number will be overwritten. The contents of the memory are displayed in the left part of the display (for example MEMORY: 230). No text is displayed if the memory is empty.
M+
P Adds the entered number to the number stored in the memory.
M-
I Subtracts the entered number from the number stored in the memory.
MR
R Store x in memory.
MC
C Erases the stored number from the memory.
Q Set the exchange rate for conversion (for example 1€ = 1.3 $ ).
E Convert x from currency $ to currency €.
$
K Convert x from currency € to currency $.

Change the size of the online calculator

How to change the calculator size

In the top right corner of the calculator you will find a switch that changes the size of the calculator. Click on a square to change the size from 1 to 3.
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