HP 39gs Master Guide

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The
MATH menu holds all the functions that are not used often enough to be worth a key of their own. There
is a very large supply of functions available, many of them extremely powerful, listed in their own chapter
beginning
on page 165.
When you press the
MATH key you will see the pop up screen shown
right. The left hand menu is a list of topics. Scroll through the topics
until you find the one you want, then use the right arrow key to move
into the list of functions for that topic.
For example:
The function
ROUND will round off to a specified number of decimal
places.
E.g. round off 145.25667 to 3 decimal places.
Press the
MATH key & right arrow ( ) into the Real group of functions.
Press the ‘
R’ key (the 9 key) to move to the first of the functions
beginning with ‘R’, then move down one more function to
ROUND.
Press
ENTER.
Now finish off the command and press
ENTER again to see the result.
For more information on the Math Menu, see page
165.
41

HP 39gs Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Gray
Internal memory	0.256 MB

Weight and Dimensions

Weight	249 g
Dimensions (WxDxH)	187 x 94 x 31 mm