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

Casio calculator user's guide.

To obtain the conjugate complex number of 2 + 3
number format:
To obtain the absolute value and argument of 1 +
Absolute Value:
Argument:
Using a Command to Specify the Calculation Result
Format
Either of two special commands (
of a calculation to specify the display format of the calculation results. The
command overrides the calculator's complex number format setting.
' 2 + ' 2
i
2
2

## Using CALC

CALC lets you save calculation expressions that contain variables, which you
can then recall and execute in the COMP Mode (
Mode (
save with CALC.
• Expressions: 2X + 3Y, 2AX + 3BY + C, A + B
• Multi-statements: X + Y : X (X + Y)
• Equalities with a single variable on the left and an expression including
variables on the right: A = B + C, Y = X
(Use
To store 3A + B and then substitute the following values to perform
the calculation: (A, B) = (5, 10), (7, 20)
a
bi
+
)
(CMPLX)
(CMPLX)
= 2
45, 2
i
2
(
)
( ) 45
). The following describes the types of expressions you can
(=) to input the equals sign of the equality.)
3
Prompts for input of a value for A
(Conjg) 2
3
(Abs) 1
(arg)1
r θ
or
45 = ' 2 + ' 2
i
(CMPLX)
(CMPLX)
2
+ X + 3
(A)
5
10
(or
E-19
i
(Complex
i
(
)
i
i
(
)
i
(
)
a
bi
+
) can be input at the end
r θ
(
)
a
bi
(
+
)
) and the CMPLX
i
(B)
Current value of A
)
i
2–3
' 2
45
2 45
' 2 +' 2
i
Math
Math

Fx-991es plus