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<H2>
The ma algorithm</H2></CENTER>
<CENTER><A HREF="cybil.html">The Cybil composition language</A></CENTER>
<CENTER><A HREF="gensyn.html">Cybil general syntax</A></CENTER>
<CENTER><A HREF="commands.html">Algorithms</A><B><A HREF="sq.html"> sq</A>
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<H4>
The ma algorithm</H4>
<PRE>{ma f/i val1 val2 val3 val4 duration(s)}</PRE>
The <B>ma</B> is for mask. The values given after <B>ma</B> will define
whether floating point numbers (<B>f</B>) or integer numbers (<B>i</B>)
will be generated, followed by a tendency mask. <B>val1</B> and<B> val3</B>
define the departure and arrival points of the minimum line. <B>val2</B>
and <B>val4</B> define the departure and arrival points of the maximum
line. A random number between the time-varying minimum and maximum lines
lines is generated. Last element in the list is the duration in number
of events or seconds (s)
<P>Values can be:
<OL>
<LI>
<B>a real number.</B></LI>
<PRE>{ma f 1.2 3 5 9 10s}
{ma i 3 10 400 6000 30}</PRE>
<LI>
<B>a CECILIA irate variable.</B> Any irate variable from the CECILIA interface
can be used (sliders, toggles, option) by including the name of the variable
between <B>[]</B> brackets. The substitution is done before the score is
pre-compiled.</LI>
<PRE>{ma f [blue] [black] 6 6 30s}</PRE>
where <B>blue</B> and <B>black</B> have been defined as irate variables
in the CECILIA interface. <BR>
<BR>
<LI>
<B>a Cybil function.</B>Any Cybil function can be used to generate a value
for the sequencer. Each time the value is needed, the function is evaluated
(see functions further).</LI>
<PRE>{ma i {ran f .5 3.3} 4 {ran i 9 100} 2000 30s}</PRE>
At computation time, the departure value of the minimum line will be randomly
selected between .5 and 3.3 and the departure point for the maximum line
will be randomly selected between 9 and 100.</OL>
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