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[java] java.lang.Math functions


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#1 appleweed   Members   -  Reputation: 122

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Posted 27 November 2000 - 12:31 PM

Hey all... I was fiddling around with optimizing some code and I used a typical approximation to replace the SQRT() function. (This is common when coding vector length calculcations in C.) Funny thing, I tried several well-known approximations and found that my code, at best, ran as fast as the Math.sqrt() call or _slower_! I''m using JDK 1.3... anyone know if Sun has made the math library functions as optimized as possible? -Omar --- "We are Indigenous. Welcome." Indigenous Technologies, Inc.

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#2 snowmoon   Members   -  Reputation: 122

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Posted 27 November 2000 - 01:48 PM

Yes, the Math library is ( I believe ) all calls to native routines that are optimized. For many of them the call overhead is much larger than the acutal math.

#3 appleweed   Members   -  Reputation: 122

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Posted 28 November 2000 - 08:04 AM

Thanks, Snowmoon!

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"We are Indigenous. Welcome."
Indigenous Technologies, Inc.




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