- The mathematical expressions are typed on the keybord in the same way as they are written.
- The cursor - the blue vertical line - shows the inserting position. To move the cursor, touch on the display screen or press one of the cursor (left and right array) buttons
- The display can be zoomed in or out with pinch gestures. The display can only zoomed in if the whole expression don't fit on the display
- The multiplication sign "x" can be omitted in following situations:
- before an opening paranthesis
- after a closing paranthesis
- before the root sign
- before a function
- before a constant (π,e)