Page 19-1
Chapter 19
Equation Library
The Equation Library is a collection of equations and commands that 
enable you to solve simple science and engineering problems. The library 
consists of more than 300 equations grouped into 15 technical subjects 
containing more than 100 problem titles. Each problem title contains one 
or more equations that help you solve that type of problem.
Example: Examine the equation set for Projectile Motion. 
NOTE: the examples in this chapter assume that the operating mode is 
RPN and that flag –117 is set. (Flag –117 should be set whenever you 
use the numeric solver to solve equations in the equations library.)
Step 1: Fix the display to 2 decimal places and then open the Equation 
Library application. (If 
#SI# and #UNIT# aren’t flagged with small 
squares, press each of the corresponding menu keys once.)
H˜~f™2` 
G—`#EQLIB #EQNLI  
Step 2: Select the Motion subject area and open its catalog.
~m˜`
Step 3: Select  Projectile Motion and look at the diagram that 
describes the problem.
˜˜#PIC#
SG49A.book  Page 1  Friday, September 16, 2005  1:31 PM