 | | Re: Another matrix inverse question
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(...) Hi Travis, Looking at the java version of your inversion routine I would guess that it will work for almost any 3x3 matrix + 1x3 translation (the 4x3 + 1 form). Where it will have problems is in matrices for which one or more of the (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: NEW VERSION! Re: Conversion file for ldraw to ldd
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Hi Mike, Couple of ideas for a couple of the bugs. (...) Did you triy transparent and opaque? (...) Did you try 30039? (...) Tim (19 years ago, 10-Apr-07, to lugnet.cad.ldd)
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| | Re: Using NXT Port 4 EIA-485
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Hi Christian, (...) the RS-485 interface is directly connected to the AT91SAM7S USART, so you can choose the bit rate quite freely. (...) No, it is not necessary, P-Net is just a field bus which seems to be popular in Denmark, there are others which (...) (19 years ago, 10-Apr-07, to lugnet.robotics.nxt, lugnet.robotics.nxt.nxthacking)
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| | Re: EggArt - a 4-colour Easter egg painting robot
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(...) Wonderful. This is not the typical Mindstorms Printer, of course ^_^ Congratulations David! (19 years ago, 10-Apr-07, to lugnet.robotics.nxt)
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| | Re: Its starting to happen...
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(...) Try flourescent lighting sometime. I'm thoroughly convinced that any focus groups that might have been asked about the bleys vs. greys had to have been shown the different colors under standard cool-white flourescent lighting like you'd find (...) (19 years ago, 9-Apr-07, to lugnet.color)
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| | Re: Set 7029
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(...) ciao,per quanto mi riguarda il set è carino. Mi aggiungo al commento di Willy per i colori. Per la mia costruzione sto finendo i grigi chiari e scuri tipo vecchio e devo passare a quelli nuovi. La differenza è notevole e quelli nuovi sono (...) (19 years ago, 10-Apr-07, to lugnet.org.it.itlug)
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| | Re: Another matrix inverse question
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(...) Sorry about that. I wrote that code so long ago that I forgot that it wasn't a fully general-purpose matrix inversion routine. (Note that it is the way it is so that it will perform better, not because I was too lazy to do the whole shebang.) (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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(...) I think you've converted Travis' code properly, but just looking at the code, I'd say it's only intended to produce the inverse of the upper-left 3x3 matrix. None of the other rows or the determinant depend in any way on the 4th row, and it's (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Another matrix inverse question
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Hello, I read James Reynolds' question about inverse matrices and the responses with interest since I similar questions about matrix inverses. I used Travis's TCVector::invertMatrix code as the base for a Java function. Other than the change to Java (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: NEW VERSION! Re: Conversion file for ldraw to ldd
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(...) I just uploaded my version 1.01e. This is what I have fixed and found as of today. I’m still working on some problem ones below and I’m at a loss on what to do if anything I could do. If you already downloaded the 1.01A through D you will have (...) (19 years ago, 10-Apr-07, to lugnet.cad.ldd)
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