I occasionally play around with computational astronomy, and the book on the subject is Paul J. Heafner's Fundamental Ephemeris Computations, which gives routines for working with JPL's high-accuracy planetary ephemerides.
Since Dr Heafner wrote his functions in PowerBASIC, I needed to translate PowerBASIC's FIX function to some Mathematica equivalent this evening. I read over the scanty docs at powerbasic.com and thought it sounded like Mathematica's IntegerPart; checking the docs for IntegerPart I was amazed at the amount of information provided - from basic definitions and explanations to arcane unexpected applications of the function, plus relevant links to related functions and, of course, the magisterial entry at MathWorld - check out that table of fractional-part/integer-part functions! I'm mighty proud of our documentation.
Not just an employee, but also a satisfied customer.
03:49 | link | | |
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And the Word became flesh and dwelt among us.—St John of Patmos
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