Texas Instruments TI-73 EXPLORER - Manual (Page 47)

Chapter 2: Math Operations
41
7302ENG.DOC CH2 Math Operations, English Julie Hewlett Revised: 07/29/98 11:58 AM Printed: 05/19/99 8:58
AM Page 41 of 32
bound
bound
limits apply to the unknown variable value for which
you are solving. Default bounds are {M1©99,1©99}. Use these
limits to narrow the unknown value solution to a specific
range of numbers, especially if more than one answer exists.
Hint: For answers with many solutions (for example, trig
functions), consider graphing the function first to get an idea
of the most ideal (or specific)
bound
limits.
Solve
Specify the unknown variable from the
Solve
line. This
prompts the calculator to solve for it.
To select a variable on the
Solve
line, highlight the unknown
variable with the cursor, and then press b. After you press
b, a solid black square appears next to the solved
(previously unknown) variable displayed in the Equation
Variables section.
Hint: The Solver allows for a small tolerance when solving a
result, which is noticeable especially when solving complex
equations or those with multiple solutions. For example, a
result of 3.99999999999999 (instead of 4) for the equation
16=x 2
is considered a correct answer.
Solving Equations with Only One Possible Answer
For 2(L+M)=N, solve for L when N=268, and M=40, M14, and
307.
1. Define the equation on the
EQUATION SOLVER
screen.
1
6
$ : (if necessary)
³