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equations in the catalog, 2 by 2 and 3 by 3 linear equation
solvers. Equations and expressions may be used in several
ways. You can specify that an equation evaluates, solves for
unknown values (find roots), and is used for numeric integration.
Evaluating Expressions
The HP 35s evaluates expressions entered into the equation list.
2
For example, if you wish to evaluate X
–4 for various values of
X, press d and then press hX)2Ã4Ï. The
h key allows you to press a key showing a letter on the front
to enter a variable into an equation.
Figure 20
To evaluate this expression at a value of X=3, press Ï
when the equation is displayed. At the "?" prompt, enter a
value for X.
Figure 21
Press 3 and then the ¥ key at the top left of the keyboard.
Getting Started 29
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