Casio fx-570ES PLUS User Manual

Using CALC
CALC lets you save calculation expressions that contain variables, which
you can then recall and execute in the COMP Mode and the CMPLX
Mode.
The following describes the types of expressions you can save with CALC.
• Expressions: 2X + 3Y, 2AX + 3BX + C, A + Bi
• Multi-statements: X + Y : X(X + Y)
• Equations with a single variable on the left and an expression including
variables on the right: A = B + C, Y = X
2
+ X + 3
(Use (=) to input the equals sign of the equality.)
To start a CALC operation after inputting an expression, press the
key.
Example 1: To store 3A + B and then substitute the following values to
perform the calculation: (A, B) = (5, 10), (7, 20)
3 (A) (B)
(1) Prompts for input of a value for A
(2) Current value of A
5 10
(or )
7 20
To exit CALC:
Example 2: To store A+Bi and then determine √3 + i, 1 + √3i using polar
coordinates (r∠θ) (Angle Unit: Deg)
37

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)