<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-AU link=blue vlink=purple>
<div class=WordSection1>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>And
I did the same, and he result is an array that I didn’t inspect too
closely. The problem though is that the core integration fails to converge when
the upper bound is 2*%pi.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>If
I run </span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>integrate('sin(x)','x',0,
1.999*%pi) it converges.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cheers;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Peter.</span><span
style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Julio Gonzalez-Saenz [mailto:julio.gonzalez@ymail.com]
<br>
<b>Sent:</b> Tuesday, 19 October 2010 00:39<br>
<b>To:</b> users@lists.scilab.org<br>
<b>Subject:</b> Re: [scilab-Users] Convergence problem<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
ran the example on help, and it ran..<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>x0=0;x1=0:0.1:2*%pi;<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>X=integrate('sin(x)','x',x0,x1);<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Regards,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Julio<o:p></o:p></span></p>
</div>
<div>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
<hr size=1 width="100%" align=center>
</span></div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> xavier roguiez
<xr@geo.hmg.inpg.fr><br>
<b>To:</b> users@lists.scilab.org<br>
<b>Sent:</b> Mon, 18 October, 2010 15:41:39<br>
<b>Subject:</b> Re: [scilab-Users] Convergence problem<br>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Le 18/10/2010 14:29, Julio Gonzalez-Saenz a écrit :<br>
> Hi Jean,<br>
> <br>
> Without the entire definition of your formula, it is not possible to<br>
> find the error.<br>
> <br>
> Regards,<br>
> <br>
> Julio Gonzalez<br>
> PTS GmbH<br>
> Aerospace Team<br>
> <br>
> ------------------------------------------------------------------------<br>
> *From:* jean podlecki <<a href="mailto:jean.podlecki@sfr.fr">jean.podlecki@sfr.fr</a>><br>
> *To:* <a href="mailto:users@lists.scilab.org">users@lists.scilab.org</a><br>
> *Sent:* Mon, 18 October, 2010 15:22:27<br>
> *Subject:* [scilab-Users] Convergence problem<br>
> <br>
> God afternoon,<br>
> <br>
> Here's my problem.<br>
> <br>
> -------------------------------------------------<br>
> <br>
> -->integrate('sin(x)','x',0,2*%pi)<br>
> !--error 24 <br>
> Problème de convergence ...<br>
> <br>
> at line 70 of function integrate called by : <br>
> integrate('sin(x)','x',0,2*%pi)<br>
> <br>
> -------------------------------------------------<br>
> <br>
> Is it right ? How can I get the correct answer ?<br>
> <br>
> Jean.<br>
> <br>
> <br>
I've got the same result ;<br>
integrate('sin(x)','x',0,2.00001*%pi) -> not converge<br>
integrate('sin(x)','x',0,2.01*%pi) -> runs but inacurate<br>
integrate('sin(x)','x',0,1.991*%pi) -> runs but inacurate<br>
x=0:0.001:2*%pi; intsplin(x,sin(x)) -> runs but inacurate<br>
<br>
wait for a gurou ?<br>
xavier<o:p></o:p></span></p>
</div>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</div>
</body>
</html>