I got my copy of "The AWK Programming Language" at Half Price Books. It's got code to implement a relational database in AWK if you need joins. And AWK code should run in perl with minimal fuss.
I've done this with MS Paint. All you need are a pointer, pointer coordinates, and a reference in the image. Any photo editor will work. It's good to have a lot of zoom (here Paint is not the best choice) so you can pick out exactly which pixel is on an edge.
I don't recall anything on AP tests that required a serious calculator. Everything on the Calculus exam was symbolic and Physics was fairly simple. If I used a calculator it was a $10 "scientific" one (+, -,/, *, ^, 1/x, etc).
I didn't have a graphing calculator until college when I got an HP48G. I wrote a couple simple functions to interpolate values from steam tables, calculate friction factors, etc. The RPN and visible stack are helpful when you don't want to waste test time punching buttons. Also it came with minesweeper and I got tetris from a friend through the IR I/O port.
erg is a metric unit. As are calorie, dyne, bar, gauss, and a whole host of abandoned units from old metric systems. "Old metric?" I hear you cry. The metric system is not as stable and uniform as some would have you believe. The current preferred system is "SI" for international system (in French).
erg, dyne, density in g/cm^3, and pressure in dyne/cm^2 are all old school "centimeter-gram-second" (cgs) measures. Unfortunately there's a whole bunch of experimental data taken with those units and you have to be careful about keeping track of the units. So you can still crash a probe into Mars with all metric if you mix units.
SI is 40 years old, but my electrodynamics text book only switched (partially) to SI in 1999. With electromagnetics, the conversions between systems involve multiplying by pi -- a transcendental number. How's that compared to simple repeating decimals like 1/3?
Slashdot Mirror
I got my copy of "The AWK Programming Language" at Half Price Books. It's got code to implement a relational database in AWK if you need joins. And AWK code should run in perl with minimal fuss.
I prefer the original version of "Why Does the Sun Shine" to the They Might Be Giants. It's a bit more wacky when it's supposed to be educational.
http://www.acme.com/jef/singing_science/
The sun is hot! The sun is not a place where we could live.
All I asked for was sharks with frickin' lasers!
I've done this with MS Paint. All you need are a pointer, pointer coordinates, and a reference in the image. Any photo editor will work. It's good to have a lot of zoom (here Paint is not the best choice) so you can pick out exactly which pixel is on an edge.
I don't recall anything on AP tests that required a serious calculator. Everything on the Calculus exam was symbolic and Physics was fairly simple. If I used a calculator it was a $10 "scientific" one (+, -, /, *, ^, 1/x, etc).
I didn't have a graphing calculator until college when I got an HP48G. I wrote a couple simple functions to interpolate values from steam tables, calculate friction factors, etc. The RPN and visible stack are helpful when you don't want to waste test time punching buttons. Also it came with minesweeper and I got tetris from a friend through the IR I/O port.
erg is a metric unit. As are calorie, dyne, bar, gauss, and a whole host of abandoned units from old metric systems. "Old metric?" I hear you cry. The metric system is not as stable and uniform as some would have you believe. The current preferred system is "SI" for international system (in French).
erg, dyne, density in g/cm^3, and pressure in dyne/cm^2 are all old school "centimeter-gram-second" (cgs) measures. Unfortunately there's a whole bunch of experimental data taken with those units and you have to be careful about keeping track of the units. So you can still crash a probe into Mars with all metric if you mix units.
SI is 40 years old, but my electrodynamics text book only switched (partially) to SI in 1999. With electromagnetics, the conversions between systems involve multiplying by pi -- a transcendental number. How's that compared to simple repeating decimals like 1/3?