Casio FX-115ESPLUS-2

User Manual - Page 50

For FX-115ESPLUS-2.

PDF File Manual, 105 pages, Download pdf file

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To exit CALC:
Note
During the time from when you press until you exit CALC by pressing , you
should use Linear Display input procedures for input.
Using SOL
VE
SOLVE uses Newton's method to approximate the solution of equations.
Note that SOLVE can be used in the COMP Mode only.
The following describes the types of equations whose solutions can be
obtained using SOLVE.
Equations that include variable X: X
2
+ 2X - 2, Y = X + 5, X = sin(M),
X + 3 = B + C
SOL
VE solves for X. An expression like X
2
+ 2X - 2 is treated as X
2
+ 2X
- 2 = 0.
Equations input using the following syntax: {equation}, {solution
variable}
SOLVE solves for Y, for example, when an equation is input as: Y = X +
5, Y
Important!
If an equation contains input functions that include an open parenthesis (such as sin
and log), do not omit the closing parenthesis.
The following functions are not allowed inside of an equation: , d/dx, Σ, Π, Pol, Rec,
÷R.
Example: T
o 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
49
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