Casio 3950P User's Guide download pdf (Page 20)

E-18

kAbsolute Value and Argument Calculation

Supposing the imaginary number expressed by the rectangular form

z = a + bi is represented as a point in the Gaussian plane, you can

determine the absolute value (r) and argument (

␪

) of the complex

number. The polar form is r⬔

␪

• Example 1: To determine the absolute value (r) and argument (

␪

) of

3 + 4i (Angle unit: Deg) (r =

␪

53.13010235

°)

(r 

) A A R 3 + 4 i T <

(

␪



53.13010235

°) A a R 3 + 4 i T <

•The complex number can also be input using the polar form r⬔

␪

• Example 2: 2 ⬔ 45 

 i

(Angle unit: Deg)

L 2 A

Q 45 <

kRectangular Form ↔ Polar Form Display

You can use the operation described below to convert a rectangular form

complex number to its polar form, and a polar form complex number to its

rectangular form. Press A r to toggle the display between the absolute

value (r) and argument (

␪

• Example: 1

 i ↔

1.414213562 ⬔ 45

(Angle unit: Deg) 1 + i A Y < A r

2 A Q 45 A Z < A r

Imaginary axis

Real axis

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 60 61

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Casio 3950P User's Guide Page 20

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