Casio fx 991MS User Guide - Page 23

Angle Unit Conversion, Coordinate Conversion Pol - or fx 115ms

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* A n in the case of fx-100MS/fx-115MS/fx-570MS/ fx-991MS. k Angle Unit Conversion • Press A v to display the following menu. D R G 1 2 3 • Pressing 1, 2, or 3 converts the displayed value to the corresponding angle unit. • Example: To convert 4.25 radians to degrees q ..... 1(Deg) 4.25 A v 2(R) = 4 . 25r 243.5070629 k Coordinate Conversion (Pol (x, y), Rec (r, θ )) • Calculation results are automatically assigned to variables E and F. • Example 1: To convert polar coordinates (r҃2, ␪҃60°) to rectangular coordinates (x, y) (Deg) x ҃ 1 A F 2 P 60 T = y ҃ 1.732050808 0 o • Press 0 n to display the value of x, or 0 o to display the value of y. • Example 2: To convert rectangular coordinates (1, 3) to polar coordinates (r,␪) (Rad) r ҃ 2 f* 1 P L 3 T = * A f in the case of fx-100MS/fx-115MS/fx-570MS/ fx-991MS. θ ҃ 1.047197551 0 o • Press 0 n to display the value of r, or 0 o to display the value of ␪. 21

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21
*
A
n
in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
k
Angle Unit Conversion
• Press
A
v
to display the following menu.
1
2
3
D
R
G
• Pressing
1
,
2
, or
3
converts the displayed value to
the corresponding angle unit.
•
Example:
To convert 4.25 radians to degrees
q
.....
1
(
Deg)
4.25
A
v
2
(R)
=
243.5070629
4
.
2
5
r
k
Coordinate Conversion (Pol (
x
,
y
),
Rec (
r
,
θ
))
• Calculation results are automatically assigned to vari-
ables E and F.
•
Example 1:
To convert polar coordinates (
r
²
2,
±
²
60
°
)
to rectangular coordinates (
x
,
y
) (Deg)
x
²
1
A
F
2
P
60
T
=
y
²
1.732050808
0
o
• Press
0
n
to display the value of
x
, or
0
o
to dis-
play the value of
y
.
•
Example 2:
To convert rectangular coordinates (1,
3)
to polar coordinates (
r
,
±
) (Rad)
r
²
2
f
* 1
P
L
3
T
=
*
A
f
in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
θ
²
1.047197551
0
o
• Press
0
n
to display the value of
r
, or
0
o
to dis-
play the value of
±
.