Maeckes logo

<    1      2      3      4      5    >


Unit circle

The unit circle is the circle of radius 1 centered at the origin (0, 0). In this circle, the use of radians is preferred over the use of degrees.

 


Degrees

If the argument to sine is scaled by a frequency x, like in

then the first derivative gives

The second derivative shows

 


Radians

If this same sine is expressed in radians you get a different solution

Circular functions only behave correctly when radians are used.

 


Deutsch   Español   Français   Nederlands   中文   Русский