| Property | Value |
|---|---|
| Hex Value | $0B |
| Categories | |
| Localizations |
|
°
Overview
Availability: Token available everywhere.
Syntax
°
Description
Normally, when the calculator is in radian mode, the trigonometric functions only return values calculated in radians. With the ° symbol you can have the angle evaluated as if in degree mode because it converts the angle into radians.
You can insert the degree symbol by pressing [2ND] [ANGLE] [ENTER].
One full rotation around a circle is 2π radians, which is equal to 360°. To convert an angle in radians to degrees you multiply by 180/π, and to convert from degrees to radians multiply by π/180.
In radian mode:
sin(45) \\ actually calculating sin(2578.31)
.8509035245
sin(45°)
.7071067812
In degree mode:
sin(45)
.7071067812
sin(45°)
.7071067812 \\ There's no difference when in degrees
Converting Degrees, Minutes & Seconds
The degree symbol also allows you to convert degrees, minutes and seconds into decimal degrees. For example:
90°30'
90.5
90°30'09"
90.5025
The minute symbol is inserted by pressing [2ND] [ANGLE] [2]. The seconds symbol is inserted via [ALPHA] [+].
To convert back the other way (decimal to degrees-minutes-seconds) use the ►DMS command, accessed via [2ND] [ANGLE] [4]:
90.5025►DMS
90°30'09"
Optimization
When you only call the trig function once in a program and want it calculated in degrees, instead of changing the mode you can just use ° to save one-byte (the newline from using the command Degree)
:Degree
:sin(X)
can be
:sin(X°)
Related Commands
Source: parts of this page were written by the following TI|BD contributors: burr, DarkerLine, GoVegan, simplethinker.
History
| Calculator | OS Version | Description |
|---|---|---|
| TI-82 | 1.0 | Added |