Your post got me to dig out some old textbooks... A good introductory text that covers lots of topics in discrete math is "Discrete Mathematics and its Applications" by Kenneth H. Rosen. This book assumes no prior knowedge and has plenty of examples. I would suggest getting this book (or one like it) and working through it from cover to cover. An intermediate text is "Concrete Mathematics - A Foundation For Computer Science" by Graham, Knuth and Patashnik. This book assumes a strong math background. Its well written and coherent, but assumes that the reader has enough background to fill in missing steps. Stuart van Weele

Try this: 1 Bottle chocolate topping 600 ml Thickened Cream 2 tins Condensed Milk 1 tin Evaporated Milk 3 teaspoons coffee 30ml coconut essence 1/2 cup warm water 700ml bottle of whisky (or whiskey... :) Mix all milk products in large bowl, add chocolate topping and mix again. Dissolve coffee in warm water and add, mix again, stir in coconut essence, add whisky / whiskey while stirring. Done! Makes about 2.5 litres so be sure you have plenty of empty bottles to put it into :) Total cost is about $25 if you use a cheapish bottle of whisky. The better the alcohol, the better the finished product tastes... Enjoy! :-D Senior Test Engineer GLI Australia www.gli.com.au