# Casio fx-570ES PLUS User Manual: Using Solve

Casio calculator user's guide.

To store A + B
coordinates (
Note: During the time from when you press
pressing
, you should use Linear Display input procedures for input.

## Using SOLVE

SOLVE uses Newton's Law to approximate the solution of equations. Note
that SOLVE can be used in the COMP Mode (
The following describes the types of equations whose solutions can be
obtained using SOLVE.
• Equations that include variable X: X
+ 3 = B + C
SOLVE solves for X. An expression like X
– 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: ,
Pol, Rec.
To solve
and then determine ' 3 +
i
r θ
)
(A)
(CMPLX)
(or
y
ax
b
2
=
+
for
(Y)
(X)
Prompts for input of a value for Y
7
20
To exit CALC:
(CMPLX)
(B)
r θ
(
3
1
) 1
3
To exit CALC:
2
+ 2X – 2, Y = X + 5, X = sin(M), X
2
x
y
a
when
= 0,
(=)
(SOLVE)
E-20
, 1 + ' 3
i
i
using polar
CMPLX
CMPLX
i
(
)
)
until you exit CALC by
) only.
+ 2X – 2 is treated as X
b
= 1, and
= –2
(A)
(B)
Math
Math
2
+ 2X
d
dx
/
, ,
Math
Math
Current value of Y

Fx-991es plus