<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.3314" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=921134707-21102008><FONT face=Arial size=2>Dear
all</FONT></SPAN></DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial size=2>Is it possible to
include an explicite time variable in the Euler and Newmark time schemes? The
spatial variables can be included by X[], Y[], and Z[], but there does not exist
a T[] or time[].</FONT></SPAN></DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial size=2>I would like to
solve a harmonic damped oscillator with a damping term: -dt^2(phi)
-i*g*dt(phi)-k*phi = f(t), where f(t) is the driving term and g,k are constants
(or spatial operators).</FONT></SPAN></DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=921134707-21102008><FONT face=Arial size=2>KR,
<DIV align=left><FONT face=Arial size=2>
<P class=MsoNormal
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext; mso-element: para-border-div; mso-border-bottom-alt: solid windowtext 1.5pt; mso-padding-alt: 0cm 0cm 3.0pt 0cm"
align=left><SPAN style="COLOR: #003366"><?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN
style="COLOR: #003366; FONT-FAMILY: Verdana"><FONT
size=3>_____________________</FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt" align=left><B
style="mso-bidi-font-weight: normal"><SPAN
style="COLOR: #003366; FONT-FAMILY: Verdana"><FONT size=3>Lars
Rindorf<o:p></o:p></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Verdana">Technology
consultant, Ph.D.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Verdana"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Verdana">Mobile +45 7220
3367<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Verdana"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 10pt; COLOR: #003366; FONT-FAMILY: Verdana">Surfaces and
microtechnology<o:p></o:p></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana">Danish Technological
Institute<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana">Gregersensvej<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana">2630
Taastrup<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana">Denmark<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana"><A
href="http://www.dti.dk/"><SPAN
style="COLOR: gray">http://www.dti.dk</SPAN></A><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Verdana">Phone +45 7220
2000<o:p></o:p></SPAN></P></FONT></DIV></FONT></SPAN></DIV></BODY></HTML>