Casio fx-5800P - Manual (Page 49)

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) !2e
,!2e)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