Sharp PC-1500 - PC-1500 Circuit Descriptions and Schematics; PC-1500 Chip Select Circuit Operation

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PROGRAM
MU!UAL CONVERSIONS BETWEEN RE CTANGULAR PROGRAM NO .
2
Tl TL E
COORDINATES ANO POLAR COOR DINATES:
PS - A-2
2. Three dimensions
a) Rectangular ->
Polar
r =J x i + y
1
+ z '
Whe n x = y = z = 0, then r = 0
z
0 = Si ,, - •(z/ r )
the re fore 9 and <P ca n't be
z
defined.
. . ~· ""'
~( x, y,z)
Wh e nx>O , then <P= Tan-
1
(y / x)
0 y
• y
:;'.U P
Whenx = 0 and y> 0, then <P = 90°.
'
~ ·
rp P , - fj
Whe11 x = 0 and y<O , then <P = - 90°
x
x
Whenx<O and y> 0, then \0 =Tan-
1
(y / x) + I. 80°
Whe n x<O and y<O, then \O=Ta n-
1
(y/x) - 180°
b) Polar -> Rectangul ar
I x = r Co s 0 · Cos 'I'
y = r Co s O · S in 'I'
z = r S in 0
! oE • I
CD
; two dimensiona l R ec . to Polar
I DE F I
m
; two dimensional Polar to Rec.
l o• • I
CD
; three dimensional Rec. to Polar
(!i EF j
m
; three dimensional Polar to Rec.
[ Key Operation
Procedure ]
•
First, set to th e degree mode .
js tep N o.
Input Disp lay Remarks
1
l•••I CTI
X=_
2
I
I ENTER I
Y-
3
{~
I ••r•• I
R=2
4 I t ENTEA I
THETA - 120
1
l•••I
m
R = _
2
2
I ENTER I
THE TA-
3
120
I ••
1
• •
I
X=
- 1. 000
4
I ~·
1
• • I
Y= 1. 732
1
, ... ,
0
X=-
2
1
I ••TER I
Y=-
3
2
I £NTE ~
Z= _
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