 | | Re: Dumb math question related to Navigation and encoders
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(...) This is actually a very good question. Generally, math function libraries use what is called a Taylor series expansion of a trigonometric function to return an approximation to the function with arbitrary precision. The more terms from the (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | HC11 Math Libraries?
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Anyone know which of the following are the most bug-free? All were found at the Motorola ftp site: float11.arc fp11.asm 01/22/1986, R. Soja gmath.asm/gmath.lst 12/30/1988, James Shultz hc11fp.asm/hc11fp.doc 12/04/1995, Gordon Doughman HC11FP11.asm (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Purchase in Miami or Boston
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Gleason Research is a very good distributor of HBs. I have bought stuff from them before and I was very pleased. I wouldn't buy it from Patrick Hui, I was very displeased with the quality of the parts he sent me. -Peter (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Navigation & Encoders
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(...) Dear Andrew, You want the angle that line joining G and P make with X axis. That is arctan of the slope of the line from P to G. slope =(yP-yG)/(xP-xG) hence, theta = arctan ((yP-yG)/(xP-xG)) where P=(xP,yP) and G=(xG,yG) Note that this angle (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Purchase in Miami or Boston
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Hi, can anyone suggest me where to by a Handy Board and the Expansion Board in Miami or Boston, or maybe its better to by it by mail from somewhere else? Fred, just in case, Im using Outlook Express and Im sending this mail with "TEXT without (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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