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<head><title>rsort -- sort a list or matrix in reverse order</title>
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<div><a href="index.html" title="">Macaulay2Doc</a> > <a href="___The_sp__Macaulay2_splanguage.html" title="">The Macaulay2 language</a> > <a href="_lists_spand_spsequences.html" title="">lists and sequences</a> > <a href="_rsort.html" title="sort a list or matrix in reverse order">rsort</a></div>
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<div><h1>rsort -- sort a list or matrix in reverse order</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="single"><a href="_using_spfunctions_spwith_spoptional_spinputs.html">Optional inputs</a>:<ul><li><span><a href="_rsort_lp..._cm_sp__Degree__Order_sp_eq_gt_sp..._rp.html">DegreeOrder => ...</a>, -- specify Ascending, Descending, or null</span></li>
<li><span><a href="_rsort_lp..._cm_sp__Monomial__Order_sp_eq_gt_sp..._rp.html">MonomialOrder => ...</a>, -- specify Ascending or Descending monomial order</span></li>
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<div class="single"><h2>Description</h2>
<div>Same as <a href="_sort.html" title="sort a list or columns of a matrix">sort</a> except that the elements or columns are placed in reverse order.<table class="examples"><tr><td><pre>i1 : rsort {4,2,3,1}
o1 = {4, 3, 2, 1}
o1 : List</pre>
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The optional parameters are the same as for <a href="_sort.html" title="sort a list or columns of a matrix">sort</a>.<table class="examples"><tr><td><pre>i2 : R = QQ[a..d];</pre>
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<tr><td><pre>i3 : m = matrix{{a*b, c*d, a*d^3, b^3*c, 1_R}}
o3 = | ab cd ad3 b3c 1 |
1 5
o3 : Matrix R <--- R</pre>
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<tr><td><pre>i4 : rsort(m, DegreeOrder=>Ascending)
o4 = | b3c ad3 ab cd 1 |
1 5
o4 : Matrix R <--- R</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_sort.html" title="sort a list or columns of a matrix">sort</a> -- sort a list or columns of a matrix</span></li>
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<div class="waystouse"><h2>Ways to use <tt>rsort</tt> :</h2>
<ul><li>rsort(List)</li>
<li>rsort(Matrix)</li>
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