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------- Additional comments from [EMAIL PROTECTED] Thu Oct 6 19:08:02 -0700 2005 ------- Compile and run the test program as follows: [EMAIL PROTECTED] Erf]$ g++ -Os -o erf erf.cxx [EMAIL PROTECTED] Erf]$ ./erf 5 <maclaurin> erf: 1.000000000072773 erfc: -7.2773443412881e-11 <asymptotic> erf: 0.9999999999984626 erfc: 1.537436844500917e-12 The maclaurin series expansion gives Calc's current answers for erf and erfc, while the asymptotic series expansion (proposed new algorithm) give more accurate answers. You can also run this program with no arguments. It will compute erf and erfc using both the Maclaurin expansion (current algorithm) and the Asymptotic expansion (new algorithm) for x between -10 and 10 incremented by 0.1. [EMAIL PROTECTED] Erf]$ ./erf x erf(x) <maclaurin> erfc(x) <maclaurin> erf(x) <asymptotic> erfc(x) <asymptotic> -10 7.331381385975313e+21 -7.331381385975313e+21 -1 2 -9.9 -3.548111434363548e+19 3.548111434363548e+19 -1 2 -9.8 -1.744418020013381e+20 1.744418020013381e+20 -1 2 -9.7 -1.560844956904942e+19 1.560844956904942e+19 -1 2 <snip> 9.7 -7.659310690090643e+18 7.659310690090643e+18 1 0 9.8 3.709705234685252e+19 -3.709705234685252e+19 1 0 9.9 4.120589789696997e+20 -4.120589789696997e+20 1 0 10 9.970406838904948e+21 -9.970406838904948e+21 1 0 --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
