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 Post subject: CS74 Program
PostPosted: Wed 03-24-2004 10:51PM 


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Is it me or does this thing totally suck? I get it to work except for the ln(x)-1 values are off by a really small amount. Any suggestions?


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PostPosted: Wed 03-24-2004 10:53PM 
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Compile and run on a different server, and/or use double-precision variables. See what you get.

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PostPosted: Wed 03-24-2004 10:59PM 


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still get the same thing.... dang


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PostPosted: Wed 03-24-2004 11:00PM 
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Try the intro machines rather than the gpunix machines, or vice versa.

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PostPosted: Wed 03-24-2004 11:20PM 
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How much is a "small amount"? Remember what you're dealing with, and you'll never get "exact" answers with computers.

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PostPosted: Wed 03-24-2004 11:50PM 


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small is like -.09.... is -.1..... and 5.5..... is 5.49.....


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PostPosted: Wed 03-24-2004 11:50PM 


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and tried the intro and gpunix stuff


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PostPosted: Wed 03-24-2004 11:53PM 
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Is it around or less than 0.01 off? Because it sounds close enough to me. You'll never get the same answer your calculator will (different precision, alg, and/or order of ops), and as long as the values are consistantly "close" you won't have a problem. If you're really worried about it, then just change the precision of the outputted display (although, I can't remember if it rounds - I never use those functions).

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PostPosted: Thu 03-25-2004 12:14AM 
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Change the percision and decimal points. As much as that must suck though, try out our current program in 53 http://web.umr.edu/~mhell/cs53/homework/h7.html. That sieve thing is beating the piss outta me.

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PostPosted: Thu 03-25-2004 12:52AM 
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I couldn't get those values right either, I think his were wrong because everyone's were like that.


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PostPosted: Thu 03-25-2004 2:03AM 
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HOLY CRAP!! You all are seriously writing a prime number seive in CS 53? That's awesome...ok you don't get it...

It's awesome because I got bored and started doing the same thing in Fortran yesterday. For fun. For something to do. And because I was tired of looking up lists of primes off of a website.

In any case, that's awesome.

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