Tutorial > Standard mode and common operations >


Simple calculations

SpeakOn CalcPad can operate in either standard or scientific mode. After installation it is configured by default to start in standard mode where you can perform simple calculations and operations common to both modes.

When SpeakOn CalcPad starts, you are in the Calculator's main task and the focus is on the Pad EditCombo control.

The Pad EditCombo control is where you type and perform the calculation, observe the result and navigate to previous calculations (history) if you wish.

You can imagine that the Pad EditCombo control performs similarly to an office pad made of sheets of paper where each sheet contains either a recent calculation, result or calculation history; you can erase (clear) any of the sheet or the whole pad as described further below.

To demonstrate the above type the following:
1+2
Press Select [Enter]
The result 3 is added to the Pad EditCombo control.

You can go back to the previous calculation by pressing Up [up arrow] and then press Select [Enter] to perform the calculation again.

To type another calculation you need first to clear the previous one. To do this, issue the 'Clear' command by pressing * 'Del' [Ctrl + Del] or [Ctrl + d]. Then type your new calculation and perform it by pressing the Select [Enter] key.

As you type and perform calculations you will find that previous calculations are added to the Pad EditCombo as history which you can always get to by pressing the Up [up arrow] and Down [down arrow] keys.

Calculations are performed using mathematical operators in a similar order to Excel and other spread sheets but there are important differences. Make sure that you read in the Tutorial:
Calculation terminology and mathematical operators

Perform the following calculation:
3 + 4 * 2
Result: 11

This result is because the multiplication has priority over addition. To force a different calculation order you can use brackets as follows:
(3 + 4) * 2
Result: 14


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