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From: | tyoung AT netaxis DOT com (tom young) |
Subject: | Re: Math errors |
Newsgroups: | comp.os.msdos.djgpp |
References: | <6v30a8$1uc$1 AT news2 DOT saix DOT net> <36159F6E DOT 244FC966 AT cartsys DOT com> |
X-Newsreader: | TIN [version 1.2 PL2] |
Lines: | 32 |
Message-ID: | <NGpR1.1674$O33.3450147@news6.ispnews.com> |
NNTP-Posting-Host: | 198.69.103.4 |
X-Trace: | news6.ispnews.com 907421485 198.69.103.4 (Sat, 03 Oct 1998 09:31:25 EDT) |
NNTP-Posting-Date: | Sat, 03 Oct 1998 09:31:25 EDT |
Organization: | ISPNews http://ispnews.com |
Date: | Sat, 03 Oct 1998 13:31:25 GMT |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
I get the following on both msdos/DJGPP and Linux/gcc ( with ric, which uses math.h doubles: precision(7) P2=4*asin(1);\n P2;\n; sin(100000000*P2);\n;sin(10000000*P2);\n 6.2831853 -0.0000001 0.0000000 Not too shabby! Your nephew must be using enormous numbers. Probably avoidable. Nate Eldredge (nate AT cartsys DOT com) wrote: : Rylan wrote: : > : > Hi, : > : > My nephew uses both DJGPP and Watcom, and recently complained that the DJGPP : > C math COS/SIN functions start returning invalid values (larger than -1 and : > 1) for large input values - he says that Watcom and real mode Pascal returns : > correct values for inputs to their SIN/COS functions for which DJGPP returns : > invalid values. : > : > Any idea where the problem is? His email: grigi AT acenet DOT co DOT za : Post an example? : -- : Nate Eldredge : nate AT cartsys DOT com
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