HP (Hewlett-Packard) 20B Calculator User Manual


 
Mathematical Calculations
24
Figure 8 The Menu Map for the Math Menu
Press < to scroll through the menu items, starting with
Trigonometry.
The
Trigonometry, Hyperbolic,
and
Probability
items
have sub-menus. Press I with these items displayed to access the functions within the sub menus.
Press O to cancel the Math menu and return to current work. Press :s to return to the top of the Math menu.
For an example using the math menu to calculate Sin
-1
(0.5), see Table 2-5.