Statistical calculation, K absolute value and argument (abs, arg), Stat) – Casio fx-115ES User Manual

Page 46: K statistical calculation types, K inputting sample data

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k Absolute Value and Argument (Abs, arg)

You can use the following procedure to obtain the absolute value
(|Z|) and argument (arg) on the Gaussian plane for a complex number
of the format Z =

a

+

bi

.

1w(Abs); 12(CMPLX)1(arg)

Appendix

<#051> Obtain the absolute value and argument of 2 + 2

i

.

*1 Absolute Value

*2 Argument

Statistical Calculation

(STAT)

All calculations in this section are performed in the STAT Mode
(N3).

Selecting a Statistical Calculation Type

In the STAT Mode, display the statistical calculation type selection
screen.

k Statistical Calculation Types

Key

Menu Item

Statistical Calculation

1

1-VAR

Single-variable

2

A+BX

Linear regression

3

_+CX

2

Quadratic regression

4

In X

Logarithmic regression

5

e

^X

e

exponential regression

6

A•B^X

ab

exponential regression

7

A•X^B

Power regression

8

1/X

Inverse regression

k Inputting Sample Data

Displaying the STAT Editor Screen

The STAT editor screen appears after you enter the STAT Mode
from another mode. Use the STAT menu to select a statistical
calculation type. To display the STAT editor screen from another STAT
Mode screen, press 11(STAT)2(Data).

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