HP 33s Scientific manual Alpha Keys, Cursor Keys

Pressing {or turns on the corresponding ¡or ¢annunciator symbol at the top of the display. The annunciator remains on until you press the next key. To cancel a shift key (and turn off its annunciator), press the same shift key again.

Alpha Keys

Left-shifted	Right-shifted
funct ion	function
G	Letter for
	alphabetic key

Most keys have a letter written next to them, as shown above. Whenever you need to type a letter (for example, a variable or a program label), the A..Z annunciator appears in the display, indicating that the alpha keys are "active”.

Variables are covered in chapter 3; labels are covered in chapter 12.

Cursor Keys

Note that the cursor key itself is not actually marked with arrows. To make the explanations in this manual as easy to understand as possible, we will refer to specific cursor keys as noted in the illustration below.

Getting Started 1–3