Graph/Zoom button
Press this button before introducing a formula. The LCD
screen will display Y=
If the graph is in zoom mode, press this button once in order
to return the graph to its original size.
Factor / Range button
Use this button in order to confi rm or adjust the range and
the size of the graph.
Press this button after pressing the
button in order to
increase or decrease the high and low ranges of the graph.
Press this button followed by the
button in order to
assign the same value in more than one memory position
Example:
If you wish to save the value 456 in memories A to F