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		<title><![CDATA[Tvlax Forums - All Forums]]></title>
		<link>http://www.tvalx.com/mybb/</link>
		<description><![CDATA[Tvlax Forums - http://www.tvalx.com/mybb]]></description>
		<pubDate>Mon, 20 May 2013 21:51:11 +0000</pubDate>
		<generator>MyBB</generator>
		<item>
			<title><![CDATA[Copy protection]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2404</link>
			<pubDate>Thu, 21 Mar 2013 13:29:11 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2404</guid>
			<description><![CDATA[There are two main directions: <br />
1. machine code<br />
2. interpreters .<br />
Machine code is more open for editing. An experience hacker can simply edit "if" statements in protection parts. The only way of protection, I see, is to bury protection parts in mass of masking code.<br />
Interpretation code is less editable. But it is more compact and open for analysis. Thus intellectual property is less protected. Renaming is a good way of ideas protection. But I would like to have a string encryption and structure obfuscation. Since popular obfuscators are targets for deobfuscators, the only way I see is to create my own obfuscator and go a step ahead deobfuscators.]]></description>
			<content:encoded><![CDATA[There are two main directions: <br />
1. machine code<br />
2. interpreters .<br />
Machine code is more open for editing. An experience hacker can simply edit "if" statements in protection parts. The only way of protection, I see, is to bury protection parts in mass of masking code.<br />
Interpretation code is less editable. But it is more compact and open for analysis. Thus intellectual property is less protected. Renaming is a good way of ideas protection. But I would like to have a string encryption and structure obfuscation. Since popular obfuscators are targets for deobfuscators, the only way I see is to create my own obfuscator and go a step ahead deobfuscators.]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Testing Quituple Integral Calculator]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2403</link>
			<pubDate>Fri, 01 Feb 2013 20:59:57 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2403</guid>
			<description><![CDATA[Let's calculate volume of 6 dimensional ball. Using<br />
source functions:<br />
function f(x,y,z) = (1-x*x-y*y-z*z-w*w-u*u)^0.5<br />
upper contour for y = (1-x*x)^0.5<br />
lower contour for y = -(1-x*x)^0.5<br />
upper surface for z = (1-x*x-y*y)^0.5<br />
lower surface for z = -(1-x*x-y*y)^0.5<br />
upper hypersurface for w = (1-x*x-y*y-z*z)^0.5<br />
lower hypersurface for w = -(1-x*x-y*y-z*z)^0.5<br />
upper hypersurface for u = (1-x*x-y*y-z*z-w*w)^0.5<br />
lower hypersurface for u = -(1-x*x-y*y-z*z-w*w)^0.5<br />
and<br />
upper limit for x = 1<br />
lower limit for x = -1<br />
working uncertainty = 1E-11<br />
we get<br />
integral = 2.58385639002498<br />
estimated uncertainty = 3.99840112477503E-13<br />
This is a half of the ball similarly to half of disk in simple integral.<br />
So 2.58385639002498*2 = 5.16771278004996 .<br />
Using calculator Real 27 we get π^3/6 = +5.16771278004997002924605264E0.<br />
Thus we have accurate computation of 6-ball by formula π^3/6 .]]></description>
			<content:encoded><![CDATA[Let's calculate volume of 6 dimensional ball. Using<br />
source functions:<br />
function f(x,y,z) = (1-x*x-y*y-z*z-w*w-u*u)^0.5<br />
upper contour for y = (1-x*x)^0.5<br />
lower contour for y = -(1-x*x)^0.5<br />
upper surface for z = (1-x*x-y*y)^0.5<br />
lower surface for z = -(1-x*x-y*y)^0.5<br />
upper hypersurface for w = (1-x*x-y*y-z*z)^0.5<br />
lower hypersurface for w = -(1-x*x-y*y-z*z)^0.5<br />
upper hypersurface for u = (1-x*x-y*y-z*z-w*w)^0.5<br />
lower hypersurface for u = -(1-x*x-y*y-z*z-w*w)^0.5<br />
and<br />
upper limit for x = 1<br />
lower limit for x = -1<br />
working uncertainty = 1E-11<br />
we get<br />
integral = 2.58385639002498<br />
estimated uncertainty = 3.99840112477503E-13<br />
This is a half of the ball similarly to half of disk in simple integral.<br />
So 2.58385639002498*2 = 5.16771278004996 .<br />
Using calculator Real 27 we get π^3/6 = +5.16771278004997002924605264E0.<br />
Thus we have accurate computation of 6-ball by formula π^3/6 .]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Quintuple Integral Calculator Real 15]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2402</link>
			<pubDate>Wed, 30 Jan 2013 22:55:55 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2402</guid>
			<description><![CDATA[Quintuple Integral Calculator Real 15 is ready and available for download and trial on page <a href="http://www.tvalx.com/rental/rental.html" target="_blank">http://www.tvalx.com/rental/rental.html</a> .<br />
Owners of download sites, if you want extended trial for Quintuple Integral Calculator Real 15, let me know. I will extend your trial.]]></description>
			<content:encoded><![CDATA[Quintuple Integral Calculator Real 15 is ready and available for download and trial on page <a href="http://www.tvalx.com/rental/rental.html" target="_blank">http://www.tvalx.com/rental/rental.html</a> .<br />
Owners of download sites, if you want extended trial for Quintuple Integral Calculator Real 15, let me know. I will extend your trial.]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Quintuple Integral Calculator Real 15]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2401</link>
			<pubDate>Wed, 30 Jan 2013 20:33:48 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2401</guid>
			<description><![CDATA[Quintuple Integral Calculator Real 15 is ready and available for download and trial on page <a href="http://www.tvalx.com/rental/rental.html" target="_blank">http://www.tvalx.com/rental/rental.html</a> .]]></description>
			<content:encoded><![CDATA[Quintuple Integral Calculator Real 15 is ready and available for download and trial on page <a href="http://www.tvalx.com/rental/rental.html" target="_blank">http://www.tvalx.com/rental/rental.html</a> .]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Multidimensional integrals]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2400</link>
			<pubDate>Sun, 25 Nov 2012 20:16:56 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2400</guid>
			<description><![CDATA[I already have done multidimensional integral calculators up to octuple integral (not published) and tanh-sinh quadrature works pretty well with natural increase of computational time and uncertainty. It is obvious that beyond dimension 8 tanh-sinh becomes useless. So beyond dimension 8 Monte Carlo method becomes the only alternative. Quasi Monte Carlo, used supposedly by Wolfram for dimensions up to 3, will not work for dimension 9 and above. So the only alternative will be true stochastic Monte Carlo.<br />
Although this article  <a href="http://www.cs.columbia.edu/~ap/html/phys.pdf" target="_blank">http://www.cs.columbia.edu/~ap/html/phys.pdf</a> states that QMC beats MC.]]></description>
			<content:encoded><![CDATA[I already have done multidimensional integral calculators up to octuple integral (not published) and tanh-sinh quadrature works pretty well with natural increase of computational time and uncertainty. It is obvious that beyond dimension 8 tanh-sinh becomes useless. So beyond dimension 8 Monte Carlo method becomes the only alternative. Quasi Monte Carlo, used supposedly by Wolfram for dimensions up to 3, will not work for dimension 9 and above. So the only alternative will be true stochastic Monte Carlo.<br />
Although this article  <a href="http://www.cs.columbia.edu/~ap/html/phys.pdf" target="_blank">http://www.cs.columbia.edu/~ap/html/phys.pdf</a> states that QMC beats MC.]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Definite integral calculation]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2399</link>
			<pubDate>Wed, 14 Nov 2012 17:49:13 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2399</guid>
			<description><![CDATA[God damn, even our modest Quadrature Calculator Level 2 is ahead of Maple 16 in definite integral calculation. Maple was calculating about five second and returned 10 digits. Quadrature Calculator Level 2 calculates 14-16 digits in a fraction of second. People of Maple, your derivative calculation is superior, but numerical calculation is pretty weak. Should we combine our skills?]]></description>
			<content:encoded><![CDATA[God damn, even our modest Quadrature Calculator Level 2 is ahead of Maple 16 in definite integral calculation. Maple was calculating about five second and returned 10 digits. Quadrature Calculator Level 2 calculates 14-16 digits in a fraction of second. People of Maple, your derivative calculation is superior, but numerical calculation is pretty weak. Should we combine our skills?]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Double integral calculation]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2398</link>
			<pubDate>Wed, 14 Nov 2012 17:41:54 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2398</guid>
			<description><![CDATA[It also seems that our modest Double Integral Calculator Level 2 is the most powerful double integral calculator in the world with precision 14-16 digits and time of calculation in few seconds. Wolfram Alfa calculates double integrals with precision 5-7 digits. I could not find double integrals in Maple 16. Does anybody knows about it?]]></description>
			<content:encoded><![CDATA[It also seems that our modest Double Integral Calculator Level 2 is the most powerful double integral calculator in the world with precision 14-16 digits and time of calculation in few seconds. Wolfram Alfa calculates double integrals with precision 5-7 digits. I could not find double integrals in Maple 16. Does anybody knows about it?]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Allmän tråd]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2397</link>
			<pubDate>Sat, 27 Oct 2012 19:21:03 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2397</guid>
			<description><![CDATA[Allmän tråd för alla användare]]></description>
			<content:encoded><![CDATA[Allmän tråd för alla användare]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Allmän tråd]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2396</link>
			<pubDate>Sat, 27 Oct 2012 19:20:43 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2396</guid>
			<description><![CDATA[Allmän tråd för alla användare]]></description>
			<content:encoded><![CDATA[Allmän tråd för alla användare]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Allmän tråd]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2395</link>
			<pubDate>Sat, 27 Oct 2012 19:20:24 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2395</guid>
			<description><![CDATA[Allmän tråd för alla användare]]></description>
			<content:encoded><![CDATA[Allmän tråd för alla användare]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Allmän tråd]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2394</link>
			<pubDate>Sat, 27 Oct 2012 19:19:57 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2394</guid>
			<description><![CDATA[Allmän tråd för alla användare]]></description>
			<content:encoded><![CDATA[Allmän tråd för alla användare]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Hilo general]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2393</link>
			<pubDate>Sat, 27 Oct 2012 19:18:59 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2393</guid>
			<description><![CDATA[Hilo general para todos los usuarios]]></description>
			<content:encoded><![CDATA[Hilo general para todos los usuarios]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Hilo general]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2392</link>
			<pubDate>Sat, 27 Oct 2012 19:18:28 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2392</guid>
			<description><![CDATA[Hilo general para todos los usuarios]]></description>
			<content:encoded><![CDATA[Hilo general para todos los usuarios]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Hilo general]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2391</link>
			<pubDate>Sat, 27 Oct 2012 19:18:06 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2391</guid>
			<description><![CDATA[Hilo general para todos los usuarios]]></description>
			<content:encoded><![CDATA[Hilo general para todos los usuarios]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Hilo general]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2390</link>
			<pubDate>Sat, 27 Oct 2012 19:17:44 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2390</guid>
			<description><![CDATA[Hilo general para todos los usuarios]]></description>
			<content:encoded><![CDATA[Hilo general para todos los usuarios]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Linha geral]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2389</link>
			<pubDate>Sat, 27 Oct 2012 19:16:31 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2389</guid>
			<description><![CDATA[Linha geral para todos os usuários]]></description>
			<content:encoded><![CDATA[Linha geral para todos os usuários]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Linha geral]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2388</link>
			<pubDate>Sat, 27 Oct 2012 19:16:11 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2388</guid>
			<description><![CDATA[Linha geral para todos os usuários]]></description>
			<content:encoded><![CDATA[Linha geral para todos os usuários]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Linha geral]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2387</link>
			<pubDate>Sat, 27 Oct 2012 19:15:27 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2387</guid>
			<description><![CDATA[Linha geral para todos os usuários]]></description>
			<content:encoded><![CDATA[Linha geral para todos os usuários]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Linha geral]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2386</link>
			<pubDate>Sat, 27 Oct 2012 19:15:02 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2386</guid>
			<description><![CDATA[Linha geral para todos os usuários]]></description>
			<content:encoded><![CDATA[Linha geral para todos os usuários]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Ogólny wątek]]></title>
			<link>http://www.tvalx.com/mybb/showthread.php?tid=2385</link>
			<pubDate>Sat, 27 Oct 2012 19:14:11 +0000</pubDate>
			<guid isPermaLink="false">http://www.tvalx.com/mybb/showthread.php?tid=2385</guid>
			<description><![CDATA[Ogólny wątek dla wszystkich użytkowników]]></description>
			<content:encoded><![CDATA[Ogólny wątek dla wszystkich użytkowników]]></content:encoded>
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