HP HP-65 - Figure 3-1. Functions Involving Angles

Keys
Function
Input
Value(s)
Result(s)
I
[cos)
I
(o9
&N
|_JEm|
W[
M
[=ovs]
B
Gows]
W
(ows+])
Cosine
Arc
cosine
Sine
Arc
sine
Tangent
Arc
tangent
Convert
rectangular
coordinates
(x,
y)
to
polar
form
(r,
6)
Convert
polar
coordinates
(r,
)
to
rectangular
form
(x,y)
Convert
decimal
angle
to
DDDDD.MMSS
format***
Convert
DDDDD.MMSS*
**
angle
to
decimal
format
Add
(x+y)
in
DDDDD.MMSS
format***
Subtract
(x—y)
in
DDDDD.MMSS
format***
Angle*
x not
be
greater
than
1
or
less
than
—1
(|x|
<
1)
Angle* X not
be
greater
than
1
or
less
than
—1
(/x
<
1)
Angle* Unrestricted
x
X,
yinX,Y
roinX,Y Decimal
angle****
DDDDD.MMSS
yil
PP
x:J
DDDDD.MMSS
Y3
-...
x:}DDDDD.MMSS
Cosine
(x)
in
X
Principal
value
of
arc
cosine
(x)
in
X
(0°
<
result
<
180°)**
Sine
(x)
in
X
Principal
value
of
arc
sine
(x) in
X
(—90°
<
result
<
90°)**
Tangent
(x)
in
X
Principal
value
of
arc
tangent
(x)
in
X
(—90°
<
result
<
+90°)**
ro*inX,Y
X,y
in
X,
Y.
(Program
halt
on
underflow
in
X.)
DDDDD.MMSS
in
X
Decimal
angle****
in
X
DDDDD.MMSS
in
X
(Sum)****
DDDDD.MMSS
in
X
(Difference)****
*
Decimal
angle
in
prevailing
angular
mode.
**
Or
equivalent
in
grads
or
radians.
***
DDDDD.MMSS
format.
D
=
degrees,
MM
=
minutes,
SS
=
seconds.
****
Magnitude
of
angle
should
not
exceed
99999.99999
decimal
degrees
(or
equivalent
in
radians
or
grads)
or
99999.59599
in
DDDDD.MMSS
format.
gure
3-1.
Functions
Involving
Angles