Psion Teklogix 32M/64M, netBook manual General calculations, Using the memory

General calculations

To perform a calculation in the Desk calculator:

1.Enter your calculation using the number and operator buttons (+, -, × and ÷) on screen or the keyboard. There is no operator precedence in the Desk view: all calculations are performed as you type them in. So, 10+5×3=45, not 25.

2.Tap = or press Enter to get the result.

∙Use +/- or the m key to change the sign of a number.

∙Tap the Shortcuts button in the Toolbar to display a list of shortcut keypresses.

∙To clear the calculation line without ending the current calculation, press C.

∙To clear the calculation line and end the current calculation, tap AC or press Esc.

The till roll keeps a record of your calculations so that you can refer back to work you did earlier. The till roll scrollbar will appear when the calculations cover more than one page. To move around the till roll, use the scrollbar or the arrow keys. To clear the till roll, tap the Clear tillroll button on the Toolbar or use the command on the Tools menu.

You can switch to the embedded numeric keypad (orange print) by pressing Shift + Menu.

Using the memory

You can use the memory to store a value that you want to re- use, or to act as a “running total”. The Memory commands can be accessed from the Memories button on the Toolbar or the command on the Tools menu.

∙To store a number in the memory: tap Min or select the Save in command while the number you want to store is in the calculation line. An ‘M’ will appear in the calculator display while there is a value stored in the memory.

∙To retrieve a number: tap MR or select the Recall command.

∙To add the current number to the number in the memory: tap M+ or select the Add to command.

∙To subtract the current number from the number in the memory: tap M- or select the Subtract from command.

∙To clear the memory: tap Min while 0 is displayed in the calculation line, or select the Clear command.

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