LEXIBOOK SC460 Owner's Manual page 62

As a reminder :
0
x = rcos
y = rsin
0

and r = √(x
x and y are cartesian coordinates, or rectangular coordinates, and r and
are polar coordinates.
0
Note: the angle 0 will be calculated in the interval [-180º,+180º] (decimal
degrees) ; the angle measurement of 0 will be given in the angle unit mode
set on the calculator : in degrees if the calculator is in the Degree mode, in
radians if the calculator is in Radian mode etc.
The coordinates are stored in the temporary memories E and F after conver-
sion; like the other temporary memories, they can be recalled at any time
and used in other calculations.
E.g.:
In degree mode (D displayed):
• conversion of x= 6 and y= 4
[Pol(]6 [,] 4 [)] [=] -> Pol (6,4) | 7.211102551
The calculator immediately displays the result for the first coordinate,
r= 7.211102551
[ALPHA] [F] [=]
F represents the value of 0 , thus 33.69 degrees.
If you wish to retrieve the value of r:
[ALPHA] [E] [=]
• conversion of r= 14 and ø = 36 degrees
[SHIFT] [Rec(] 14 [,] 36 [)] [=] -> Rec(14,36)
The calculator immediately displays the result for the first coordinate,
x= 11.32623792.
[ALPHA] [F] [=]
[ALPHA] [E] [=]
62
SC460IM0237.indb 62
 -1
+y ) 0 = tan (y/x)
-> F | 33.69006753
-> E | 7.211102551
-> F | 8.228993532
-> E | 11.32623792
| 11.32623792
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20/6/07 15:28:10