HP 39gII User Manual

158 Using mathematical functions
- Negation. Also accepts complex numbers.
–value
Example:
-(1+2*i) returns -1-2*i
SABS Absolute value. For a complex number, this is .
ABS(value)
ABS((x+y*i))
Example:
ABS(–1) returns 1
ABS((1,2)) returns 2.2360679775
The Math menu
The Math menu provides access to math functions, units,
and physical constants.
By default, pressing
b
opens the Math Functions
menu. Each of the three menus (Math Functions, Units,
and SI Constants) has its own menu key. The Math menu
is organized by category. For each category of functions
on the left, there is a list of function names on the right.
The highlighted category is the current category.
When you press
b
, you see the menu list of Math
categories in the left column and the corresponding
functions of the highlighted category in the right column.
The menu key indicates that the Math Functions
menu list is active.
x
2
y
2
+

HP 39gII Specifications

General

Brand	HP
Model	39gII
Category	Calculator
Language	English