Texas Instruments TI-36X Pro User Manual - Page 24
Trigonometry - convert degrees to radians
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- d ! 1 5 % ` 30 ) < d ! 2 5 % ` 30 ) < d !3 3%`4)< d ! 4 3%`4)< 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 tan q $ $ < - Z 45 ) < tan-1 ZZ1)< cos - 5 V Y 60 ) < Example Radian Mode tan q " < - Z g P 4 " ) < 24
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
-
ZZ
1
)
<
cos
-
5
V
Y
60
)
<
tan
q
"
<
-
Z
g
P
4
"
)
<