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48 bytes added ,  05:07, 29 September 2015
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==== Bode Diagram for TikZ/PGFplots ====
 
==== Bode Diagram for TikZ/PGFplots ====
   −
We use the same system as before but we draw now with the <code style="font-size:14px; border:solid lightgray 1px; padding: 2px">bode(P)</code> a bode diagram.
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We use the same system as before but we draw now with <code style="font-size:14px; border:solid lightgray 1px; padding: 2px">bode(P)</code> a bode diagram.
The output is then written to a .csv file.
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The output is written to a .csv file.
    
<!-- {{SyntaxHighlight| -->
 
<!-- {{SyntaxHighlight| -->
{{Code|Creating a transfer function and plotting its response|<syntaxhighlight lang="octave" style="font-size:14px">
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{{Code|Creating a transfer function and calculating its bode diagram|<syntaxhighlight lang="octave" style="font-size:14px">
T1 = 0.4;              # time constant
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T1 = 0.4;              # time constant
P = tf([1], [T1 1]);
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P = tf([1], [T1 1]);
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[mag, pha, w] = bode(P);
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[mag, pha, w] = bode(P);
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csvwrite("dat/bode_p.csv", [w', 20*log10(mag), pha]);
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csvwrite("dat/bode_p.csv", [w', 20*log10(mag), pha]);
 
</syntaxhighlight>}}
 
</syntaxhighlight>}}
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<!-- {{SyntaxHighlight| -->
 
<!-- {{SyntaxHighlight| -->
{{Code|Creating a transfer function and plotting its response|<syntaxhighlight lang="latex" style="font-size:14px">
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{{Code|Creating a bode diagram with pgfplots|<syntaxhighlight lang="latex" style="font-size:14px">
 
\documentclass[tikz]{standalone}
 
\documentclass[tikz]{standalone}
 
\usepackage{pgfplotstable}
 
\usepackage{pgfplotstable}
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[[File:bode_p.png]]
 
[[File:bode_p.png]]
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Try also  (a first order low-pass filter has -3db magnitude at f=1/T1).
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It can be seen that a first order low-pass filter has <math display="inline">-3\,db</math> magnitude at <math display="inline">f=1/T_1</math>.
    
=== Inverted Pendulum ===
 
=== Inverted Pendulum ===
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