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About LinkBackswhy is it that when i type ini do not get a unit circle as a result?
is that not the equation for a unit circle in terms of x?
That is only the top half of the circle (Remember a circle isn't a function)Originally Posted by jonnygill
why is it that when i type in
is that not the equation for a unit circle in terms of x?
The bottom half has the negative from the plus or minus.
If your calculator does parametric graphs you could graph the circle with
![x(t)=\cos(t),y(t)=\sin(t), t \in [0 ,2\pi]](http://latex.codecogs.com/png.latex?x(t)=\cos(t),y(t)=\sin(t), t \in [0 ,2\pi])
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