Casio fx-570ES PLUS User Manual

(CMPLX)
(A) (B) (i)
(CMPLX) ( r∠θ)
3 1 2∠30
(or ) 1 3 2∠60
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 SOLVE
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
SOLVE 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, Pol, Rec.
Example: To solve y = ax
2
+ b for x when y = 0, a = 1, and b = -2
(Y) (=)
(A) (X) (B)
38

Casio fx-570ES PLUS Specifications

General

Display	Natural Textbook Display
Number of Functions	417
Weight	95 g
Memory	9 variables
Calculus Functions	Yes
Matrix Calculations	Yes
Vector Calculations	Yes
Complex Number Calculations	Yes
Statistical Calculations	Yes
Base-n Calculations	Yes
Table Function	Yes
Vertebrate Function	No
Hard Case	Yes
Equation Calculations	Yes
Power Source	Battery (1x AAA)