Orion TI-
30XS MultiView™ User’s Guide - User guide
Version 1.0
Orbit Research
Confidential and Proprietary Information
25
Convert polar coordinates (r, θ)=(5, 30) into rectangular coordinates. Then
convert rectangular coordinates (x, y) = (3, 4) into polar coordinates. Round the
results to one decimal place.
[R left-right arrow
P]
clear, mode,
down arrow, down arrow, right arrow, right
arrow, enter
Result = 1
clear, 2nd, [angle], right arrow
,
3
,
5
,
2nd, comma
,
30
,
), enter
,
2nd, [angle], right arrow
,
4
,
5
,
2nd, comma
,
30
,
), enter
Result = 2.5
2nd, [angle], right arrow
,
1
,
3
,
2nd, comma
,
4
,
), enter
,
2nd, [angle], right arrow
,
2
,
3
,
2nd, comma
,
4
,
), enter
Result =
53.1
Converting (r, θ) = (5, 30) gives (x, y) = (4.3, 2.5) and (x, y) = (3, 4) gives (r, θ) =
(5.0, 53.1).
3.18 Trigonometry
sin cos tan
2nd [sin
-1
] [cos
-1
] [tan
-1
]
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
mode, down arrow, down arrow, enter, clear
,
tan,
45
,
)
,
enter
Result = 1
Tan
-1
2nd, [tan
-1
]
,
1
,
)
,
enter
Result = 45
Cos
5
,
×, cos
,
60
,
)
,
enter
Result = 5/2
Example Radian Mode
Tan
mode, right arrow, enter, clear, tan
,
π, n/d
,
4
,
right arrow, ), enter
Result = 1
Tan
-1
2nd, [tan
-1
]
,
1
,
)
,
enter
Result = 0.785398163
[left-right arrow]
Result = π/4
Cos
5
,
×, cos, π, n/d
,
4
,
right arrow, )
,
enter
Result = 5√2/2
[left-right arrow]
Result = 3.535533906
