Archive for December, 2003

think think think

Friday, December 19th, 2003

My university maths lecturer would have said: ‘are you sure you really want to do all that work?’. This of course applies to the solution of the taylor polynomial for cos. Why not drop an extra term, and use the identity cos(x) = cos(pi – x). So that’s exactly what I plan to try. I […]

center from radius and two intersections

Friday, December 19th, 2003

In part 1 of how-to-draw-circles given arbitrary details about them I discussed how to find a circle’s radius given the length of the arc & chord. Now what? Well if you are given radius (r) and (x1,y1) and (x2,y2) as two points on the circle’s edge, you can calculate (cx, cy) the center of the […]

radius from arc and chord length

Friday, December 19th, 2003

Ever wanted to calculate the radis of a circle just knowing the length of an arc & it’s chord. Well after a lot of searching I found just that. The great step of faith was realising that you need to use a Taylor expasion for the trig function. Here’s a very kewl Java Applet that […]

Distributed Networking Part 2

Monday, December 1st, 2003

It seems that Microsoft have built in P2P networking as part of their advanced networking toolkit for XP SP1. Pity this will only run on the latest and greatest version of windows. But it does raise an interesting notion that p2p networks much like the Internet may change the way we think about the global […]