User's Guide

Example: To solve y = ax
2
+ b for x when y = 0, a = 1, and b = -2
(Y) (=)
(A) (X) (B)
(SOLVE)
(1) Prompts for input of a value for Y
(2) Current value of Y
0
1
2
(SOLVE)
Solution screen
To exit SOLVE:
Important!
• The following functions are not allowed inside of an equation: ∫ , d/dx, Pol, Rec.
• Depending on what you input for the initial value (solution variable), SOLVE may not
be able to obtain solutions. If this happens, try changing the initial value so they are
closer to the solution.
• SOLVE may not be able to determine the correct solution, even when one exists.
• SOLVE uses Newton's method, so even if there are multiple solutions, only one of
them will be returned.
• Due to limitations in Newton's method, solutions tend to be difficult to obtain for
equations like the following: y = sin( x ), y = e
x
, y = √ x , y =
x
-1
• If an expression does not include an equals sign (=), SOLVE produces a solution for
expression = 0.
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