To type a decimal point, press this button.

This function is unavailable in hexadecimal mode - convert to decimal first.

To type the hex digit '2', press this button.

To type the hex digit '5', press this button.

To type the hex digit '8', press this button.

To type the hex digit 'B', press this button.

To type the hex digit 'E', press this button.

The light on at the top left of this button indicates that the calculator is currently in hexadecimal mode.