Casio fx-5800P, User Manual

Page: 49 / 147

E-48
A
Syntax and Input
Rectangular-to-Polar Coordinate Conversion (Pol)
Pol(
x
,
y
)
x
: Rectangular coordinate
x
-value
y
: Rectangular coordinate
y
-value
Polar-to-Rectangular Coordinate Conversion (Rec)
Rec(
r
,
Ƨ
)
r
: Polar coordinate
r
-value
Ƨ
: Polar coordinate
Ƨ
-value
Example 1: To convert the rectangular coordinates (
'
2,
'
2 ) to polar coordinates
bv
1 +
(Pol)
! 2)
, ! 2)) E
Bv
1 +
(Pol)
! 2
e
, ! 2
e
) E
Example 2: To convert the polar coordinates (2, 30˚) to rectangular coordinates
bv
1 -
(Rec)
2,
30) E
A
Remarks
• These functions can be used in the COMP Mode.
• The
r
-value or
x
-value produced by the calculation is assigned to variable I, while the
Ƨ
-value or
y
-value is assigned to variable J (page 34).
• The values obtained for
Ƨ
when converting from rectangular coordinates to polar
coordinates is within the range –180° <
Ƨ
<
180°.
• When executing a coordinate conversion function inside of a calculation expression, the
calculation is performed using the fi rst coordinate that the conversion produces (
r
-value or
x
-value).
Example: Pol (
'
2,
'
2 ) + 5 = 2 + 5 = 7