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<head><title>resolution(..., DegreeLimit => ...) -- compute only up to this degree</title>
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<div><h1>resolution(..., DegreeLimit => ...) -- compute only up to this degree</h1>
<div class="single"><h2>Description</h2>
<div><tt>DegreeLimit => n</tt> -- keyword for an optional argument used with <a href="_resolution.html" title="projective resolution">resolution</a> which specifies that the computation should halt after dealing with degree n.<p/>
This option is relevant only for homogeneous modules.<p/>
<table class="examples"><tr><td><pre>i1 : R = ZZ/101[x,y,z,w];</pre>
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<tr><td><pre>i2 : M = cokernel matrix {{x*y-z^2,y^2-w^2}}
o2 = cokernel | xy-z2 y2-w2 |
1
o2 : R-module, quotient of R</pre>
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<tr><td><pre>i3 : res(M,DegreeLimit => 1)
1 2
o3 = R <-- R <-- 0
0 1 2
o3 : ChainComplex</pre>
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<tr><td><pre>i4 : res(M,DegreeLimit => 2)
1 2 1
o4 = R <-- R <-- R <-- 0
0 1 2 3
o4 : ChainComplex</pre>
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<h2>Further information</h2>
<ul><li><span>Default value: <a href="_null.html" title="the unique member of the empty class">null</a></span></li>
<li><span>Function: <span><a href="_resolution.html" title="projective resolution">resolution</a> -- projective resolution</span></span></li>
<li><span>Option name: <span><a href="___Degree__Limit.html" title="name for an optional argument">DegreeLimit</a> -- name for an optional argument</span></span></li>
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<div class="single"><h2>Caveat</h2>
<div>One might get some matrix entries of slightly higher degree than requested.</div>
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