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222
•REMARKS
1.
Conversion
to
polar
coordinates from
orthogonal
coordinates r=O
and
H=indefinite
if
r=y=O
r= Vx2
+
y2
+
z2
fl=sin-
1
(z/r)
cp=tan-
1
(y/x) if x>O
cj>=90°
if x=O
and
y~O
<j >
=
-90°
if x=O
and
y<O
<j>=tan-
1
(y/x)+180°
if
x<O and y~O
<l>=tan-
1
(y/x)-180°
i
t
x<O and y<O
•
HOW TO
OPERATE
1
.
Press
~
II)
(for conversion
to
polar
coordinate
from
orthogonal
coor-
dinates).
When
the
value
of each
of
orthogonal
coordinates x,
y,
and z
is input
according to
the
display,
the value of each of
pol
a
r
coordinates
r,
e,
and
cj>
appears
on the
screen in
the order
named
and then the program
ends.
2. Press
m
00
(for conversion to orthogonal
coordinates from
polar
coor-
dinates).
When the value
of each
of
pol
a r coordinates
R,
fl, and
cp
is
input,
each
value of x,
y, and
z
appears
on
the
screen
in the
order
named
and
then
the
program ends.
r~ote: When the
unit
of
angle specification is
DEG,
the result of a conversion is
obtained
in
units of degrees. Likewise, when the
angular
unit
specifi
e d is
RAD,
conversion
is
performed in units
of
radians.
This
is a very
useful
program
for effecting conversions between
orthogonal
coordi
n ates
and polar
(spherical)
coordinates in three
dimensions. When
each data
for
conver-
sion is input, the result of the
conversion
is obtained according to the
unit of
angle
which
is effective at
that time.
PROGRAM
TITLE:
Conversions
between Orthogonal
Coordinate
s
and Polar
Coordinates
- Quick Links:
- Basic Commands
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