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<head><title>HH^ZZ ChainComplexMap -- cohomology of a chain complex map</title>
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<div><h1>HH^ZZ ChainComplexMap -- cohomology of a chain complex map</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>HH^i f</tt></div>
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<li><span>Function: <a href="_cohomology.html" title="general cohomology functor">cohomology</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>i</tt>, <span>an <a href="___Z__Z.html">integer</a></span></span></li>
<li><span><tt>f</tt>, <span>a <a href="___Chain__Complex__Map.html">chain complex map</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="___Matrix.html">matrix</a></span>, the <tt>i</tt>-th cohomology map induced by the chain complex map <tt>f</tt></span></li>
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<li><div class="single"><a href="_using_spfunctions_spwith_spoptional_spinputs.html">Optional inputs</a>:<ul><li><span><a href="_cohomology_lp..._cm_sp__Degree_sp_eq_gt_sp..._rp.html">Degree => ...</a>, </span></li>
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<div class="single"><h2>Description</h2>
<div>The command provides the map on the <tt>i</tt>-th cohomology module induced by a map <tt>f</tt> of chain complexes.<p/>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_cohomology.html" title="general cohomology functor">cohomology</a> -- general cohomology functor</span></li>
<li><span><a href="___H__H.html" title="general homology and cohomology functor">HH</a> -- general homology and cohomology functor</span></li>
<li><span><a href="___Chain__Complex.html" title="the class of all chain complexes">ChainComplex</a> -- the class of all chain complexes</span></li>
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