How it works ?
In the following applet, you can input
a polar function r(t)
your min value for t
your max value of t,
and the number of intervals, n, you’d into which you’d like to split the interval [tmin, tmax].
Applet displays an approximate value of the arc length of this polar graph from tmin to tmax.
To enter a value such as 2pi/3, simply type “2pi/3” in the input box.
One more note: The max value you can input for tmax is 6pi.