Expression card guide

Try to write expressions yourself:

Step 1 of 8

/ – fraction bar · Tab or the arrows – between numerator and denominator, then a note above or below · Enter – check and a new line · * – times · ^ – power, ↓ – end of the power

/ – fraction bar · Tab or the arrows – between numerator and denominator, then a note above or below · Enter – a new line · * – times · ^ – power, ↓ – end of the power

Now you can use both keyboards – the computer’s and the card’s.

A fraction:

Type / first, on either keyboard – the computer’s or the card’s.
An empty fraction appears, with the cursor in its numerator.
Type the numerator.
↓ takes the cursor down to the denominator.

→ takes the cursor out of the fraction.
Without it, what you type next goes into the denominator too.

⌫ (Backspace) erases what is before the cursor.

Notes for expanding a fraction:

↑ takes the cursor to the numerator; ↑ again writes a note over the fraction.
↓ goes the same way down: the denominator, then a note under it.

A power:

^ (Shift + 6) takes the cursor up, to the exponent.
↓ brings it back down.

Times: * (Shift + 8) writes $\displaystyle \cdot$ , the same as $\displaystyle \times$ . On the simple keypad x writes $\displaystyle \times$ too.
Divided by: : (Shift + ;).

More keys adds the tabs abc (letters, for algebra) and f(x) (roots, π, trigonometry).
Fewer keys brings the simple keypad back.
The card keeps your choice, on every page.