source: PSPA/madxPSPA/doc/usrguide/cororbit/co_option.html @ 430

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1<head>
2<title>COPTION</title>
3<!-- Changed by: Werner Herr, 19-Jun-2002 -->
4</head>
5
6<body bgcolor="#ffffff">
7
8<h1>COPTION: Set Orbit Correction Options</h1>
9
10The random generator for MAD is taken from
11<a href="../Introduction/bibliography.html#knuth">[Knuth]</a>.
12<br>
13In the orbit program monitors can be randomly disabled and
14<br>
15the correct option command specifies different seeds for random values:
16<pre>
17COPTION,SEED=integer,PRINT=2     
18</pre>
19<ul>
20<li>SEED:
21Selects a particular sequence of random values.
22<br>
23A SEED value is an integer in the range [0...999999999] (default: 123456789).
24<br>
25SEED alone continues with the current sequence
26<br>
27See also: <a href="../Introduction/expression.html#random">Random values</a>.
28<br>
29SEED may be an expression.
30<li>PRINT:
31This flag can take integer values and
32controls the printout.
33<br>
34In general: the higher its value the more printout
35is produced.
36<br>
37For PRINT=0 no output is produced.
38<br>
39The default value is 1 (Correction summary is given).
40</ul>
41<font COLOR="#ff0000">
42Example:
43<pre>
44COPTION,SEED=987456321,PRINT=2;
45</pre>
46</font>
47
48<address>
49<a href="http://consult.cern.ch/xwho/people/1808">Werner Herr</a>
5018.6.2002
51</address>
52
53</body>
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