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Macaulay2-1.3.1-8.fc15.i686.rpm

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<head><title>inverse(Matrix) -- compute the inverse</title>
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<div><h1>inverse(Matrix) -- compute the inverse</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>inverse f</tt></div>
</dd></dl>
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<li><span>Function: <a href="_inverse.html" title="compute the inverse">inverse</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>f</tt>, <span>a <a href="___Matrix.html">matrix</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span>the inverse of <tt>f</tt></span></li>
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<div class="waystouse"><div class="single"><h2>Code</h2>
<pre>../../m2/methods.m2:506:52-515:26: --source code:
cacheValue = key -> f -> new CacheFunction from (x -> (
          c := try x.cache else x.cache = new CacheTable;
          if c#?key then (
               val := c#key;
               if class val === CacheFunction then (
                    remove(c,key);
                    c#key = val x)
               else val
               )
          else c#key = f x))
| symbol   class              value                                          location of symbol
| ------   -----              -----                                          ------------------               
| f      : FunctionClosure -- {*Function[../../m2/matrix1.m2:629:7-632:10]*} ../../m2/methods.m2:506:21-506:21
| key    : Symbol          -- inverse                                        ../../m2/methods.m2:506:14-506:16
| -- function f:
| ../../m2/matrix1.m2:629:8-632:11: --source code:
|      m -> (
|           (quo,rem) := quotientRemainder(id_(target m), m);
|           if rem != 0 then error "matrix not invertible";
|           quo))</pre>
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