Using Calc - 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
(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)
Example 2: To store A+Bi and then determine √3 + i, 1 + √3i using polar
coordinates (r∠θ) (Angle Unit: Deg)
2
3 (A)
(1) Prompts for input of a value for A
5
7
To exit CALC:
37
+ X + 3
(B)
(2) Current value of A
10
(or )
20