ParametricPlot Question

*To*: mathgroup at smc.vnet.net*Subject*: [mg37135] ParametricPlot Question*From*: Charles Morgan <charlesmorgan at attbi.com>*Date*: Sat, 12 Oct 2002 05:05:06 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

I would like to mark representative samples of t on a parametric plot, where t is the third parameter. For example, how could I mark the 8 values t=0, t=Pi/4, ..., t=7Pi/4 on the plot generated by: ParametricPlot[{Sin[t], Cos[t]}, {t, 0, 2Pi}] Thanks