24
Converting (r,
q
) = (5, 30) gives (
x
,
y
) = (4.3, 2.5) and
(
x
,
y
) = (3, 4) gives (r,
q
) = (5.0, 53.1).
Trigonometry
X
Y
Z
(multi-tap keys)
Enter trigonometric functions (sin, cos, tan, sin
-1
, cos
-1
, tan
-1
),
just as you would write them. Set the desired Angle mode
before starting trigonometric calculations.
Example Degree Mode
Example Radian Mode
-
d
!
1
5
% `
30
)
<
d
!
2
5
% `
30
)
<
d
!
3
3
% `
4
)
<
d !
4
3
% `
4
)
<
tan
q
$
$
<
-
Z
45
)
<
tan
-1
-
Z Z
1
)
<
cos
-
5
V
Y
60
)
<
tan
q
"
<
-
Z
g
P
4
"
)
<
