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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Liam, <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>The description of the
Equation component has been hidden in chapter <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><b><i><font size=4 face=Arial><span lang=EN-GB
style='font-size:14.0pt;font-family:Arial;font-weight:bold;font-style:italic'>7.3.9.1.
</span></font></i></b><b><i><font size=4 face=Arial><span style='font-size:
14.0pt;font-family:Arial;font-weight:bold;font-style:italic'>Available
mathematical functions<o:p></o:p></span></font></i></b></p>

<p class=MsoNormal><b><i><font size=4 face=Arial><span style='font-size:14.0pt;
font-family:Arial;font-weight:bold;font-style:italic'><o:p> </o:p></span></font></i></b></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Of the manual “07 –
TRNEdit”, so that only very advanced users can find it. <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>It is not possible to use
‘real’ if-then-else control structures within equation (for that
you must write a new component in a ‘real’ programming language),
but it is possible going quite far with the GT / LT style commands by <o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'><span style='mso-list:Ignore'>-<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>         
</span></font></span></span></font><![endif]><font size=2 color=navy
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:navy'>combining several conditions in a polygon (GT(a,10)*10+LT(…) AND(GT(…),
LT(…)) etc.)<o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'><span style='mso-list:Ignore'>-<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>         
</span></font></span></span></font><![endif]><font size=2 color=navy
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:navy'>using several equations with sever to eachother <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>If you have a particular
problem, post it here, you’ll probably get a couple of propositions
within the hour …<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Werner <o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>

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face="Times New Roman"><span style='font-size:12.0pt'>

<hr size=2 width="100%" align=center tabindex=-1>

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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>De :</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Liam O'Brien
[mailto:obrien_liam@hotmail.com] <br>
<b><span style='font-weight:bold'>Envoyé :</span></b> jeudi <st1:date
Year="2008" Day="24" Month="7" ls="trans" w:st="on">24 juillet 2008</st1:date>
04:07<br>
<b><span style='font-weight:bold'>À :</span></b>
trnsys-users@engr.wisc.edu<br>
<b><span style='font-weight:bold'>Objet :</span></b> [TRNSYS-users]
Equation</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>Hello All,<br>
<br>
Is anyone aware of a good guide for using Equation (i.e. "insert new
equation")?  The only thing I could find in the manual is a 2-pager
in Chapter 2 about Studio.  <br>
<br>
Basically, what I would like to do is apply some basic controls, like: if condition
A do this, if condition B do this, if condition C do this, else do this. 
For example, I would like to set up where the solar-heated air is sent based on
various conditions.  I know a single condition can be checked using GT,
LT, etc.  But I'd like something slightly more advanced.  Perhaps my
approach is not correct.<br>
<br>
Any advice would be greatly appreciated.  Thank you.<br>
<br>
Liam O'Brien<o:p></o:p></span></font></p>

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face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>

<hr size=2 width="100%" align=center>

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<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><a href="" target="_new"></a><o:p></o:p></span></font></p>

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