What's New - February, 2007
February 26, 2007:
A significant correction was posted today to our Oscilloscope4 program (Version 4.2.2). The spectrum analyzer function had displayed false overtones due to an error I made when adapting the original Fast Fourier Transform (FFT) code From Borland's Turbo Pascal version.
February 18, 2007: Three programs have had minor updates in the past few days:
February 14, 2007: Happy St. Valentine's Day to all the female viewers. For the guys, remember to get her something that tells her how you feel., even if it's only a card.
I listen to the "Car Talk" radio program on National Public Radio each weekend when I can. I also subscribe to their weekly Puzzler newsletter. A recent one involved a shootout where three mutual enemies agreed on rules for a 3-way "duel". The question was about worst shooter's strategy to maximize his chances of survival. Car Talk Shootout implements a Monte Carlo simulation to answer the question including the best strategy (which happened not to be in my original version).
February 12, 2007: Here is a new version of the
"Spring Mass" simulation program.
Several fixes and enhancements have been applied.
February 7, 2007: New versions of our big integers and and big floating point arithmetic classes were posted today in an updated version of the library zip file, DFFLibV10. Aside from general cleanup, the big integer unit, UBigIntsV3, contains new "divide with remainder" procedures illiustrating that there is more than one way to define quotient and remainder when doing integer division. See BigIntTest page for more information. For large floating point unit ,UBigFloatV3, more cleanup and a new definition of the Round function which uses a parameter to specify the "round to" point relative to the decimal point location. See BigFloatTest for more info on this.
February 1, 2007: An update to our Astronomy Demo program last night adds "twilight" times to the sun position statistics. The are three varieties (Civil, Nautical, and Astronomical) defined for different purposes, all relative to the angle of the sun below the horizon.
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