If you have studied math, the word \"calculus\" brings back memories of differentiation and integration, finding maximums, and finding areas under curves.<\/p>\n
But calculus can also mean \"calculation\" (as in \"by my calculus, it doesn't make sense to own a car\"), or a \"system or arrangement of intricate or interrelated parts\" (source: Webster's Dictionary<\/a>).<\/p>\n A final meaning for calculus is something I face each time I go to the dentist - a build-up of mineral salts on the teeth. It's also called \"tartar\". <\/p>\n And this is the connection with math. The Greek word \"calcis<\/em>\" means various stones, giving rise to the word \"calculate\", or using stones for mathematical purposes.<\/p>\n So before you think I've got rocks in my head, on with the show.<\/p>\n