Recent content by Mounty

man this is embaressing but I remember so little of this stuff does 't cos t' differentiate to -t sin t? and t sin t differentiate to t cos t? If you could post the final eqn it'd be really useful...I've got a client deadline to meet...

Thanks for the info, but I don't think it really solves my problem - The curve is being plotted realtime in cartesian spac, so I need to know when I've plotted a distance of N units along the curve as the curve is generated. If I always used t=0 as the first distinct parameter then could...

Dunno...I thought I'd made it fairly clear, my apologies if not. Never heard of curvilinear integrals...sorry. Done loads of googling on this subject but didn't find anything that gave a solution to my particular problem. I just need a formula along the lines of lenght of spiral = some...

Nope don't know them... I'm plotting a spiral by increasing t+=0.1 I need to know the length of the spiral plotted as a function of t,x and y basically I want to distributes points along the circle spaced evenly by distance... this I can only do if I know how far I've currently...

given the parametric eqns for a spiral x=kt cos t y=kt sin t where k is a constant give a function of 't' that calculates the length of the spiral.