Bobby's Trig Waltz:

This space curve was produced using the following Maple commands:

> x:=sin(t);
> y:=cos(t);
> z:=tan(t);

                             x := sin(t)


                             y := cos(t)


                             z := tan(t)

> with(plots):
> spacecurve([x,y,z],t=0..2*Pi,numpoints=10000,axes='BOXED',
>   orientation=[45,75],view=[-1..1,-1..1,-20..20]);