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<body class='hmmessage'><div dir='ltr'>Hi:<br>i think i finally solved your problem<br> use this script<br><br>Syms n z ;<br>x1 =(0.33) ^( n )<br>X1 = %sym_sum (7* x1 *( z ^( - n ) ) ,n ,0 , %inf )<br>X1=ev(X1,'simpsum=true')<br>x2 =(0.5) ^( n )<br>X2 = %sym_sum (6* x2 *( z ^( - n ) ) ,n ,0 , %inf )<br>X2=ev(X2,'simpsum=true')<br>X = X1 - X2<br><br>i just added the ev instruction after calculating X1 and X2 to simplify the sum...<br><br>the result is<br><br> X =<br> <br> 7.0 6.0<br> --------- - -------<br> 33 1<br> 1 - ----- 1 - ---<br> 100 z 2 z<br><br>that is correct!<br><br><div>> Date: Sun, 16 Aug 2015 04:18:29 -0700<br>> From: doole93@gmail.com<br>> To: users@lists.scilab.org<br>> Subject: Re: [Scilab-users] Symbolic computation in Scilab<br>> <br>> I forgot, the scimax toolbox doesn't ask me to input any convergence<br>> conditions<br>> <br>> <br>> <br>> --<br>> View this message in context: http://mailinglists.scilab.org/Symbolic-computation-in-Scilab-tp4032673p4032693.html<br>> Sent from the Scilab users - Mailing Lists Archives mailing list archive at Nabble.com.<br>> _______________________________________________<br>> users mailing list<br>> users@lists.scilab.org<br>> http://lists.scilab.org/mailman/listinfo/users<br></div> </div></body>
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