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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="_system_spfacilities.html" title="">system facilities</a> > <a href="_timing.html" title="time a computation">timing</a></div>
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<div><h1>timing -- time a computation</h1>
<div class="single"><h2>Description</h2>
<div><tt>timing e</tt> evaluates <tt>e</tt> and returns a list of type <a href="___Time.html" title="the class of all timing results">Time</a> of the form <tt>{t,v}</tt>, where <tt>t</tt> is the number of seconds of cpu timing used, and <tt>v</tt> is the value of the the expression.<p/>
The default method for printing such timing results is to display the timing separately in a comment below the computed value.<table class="examples"><tr><td><pre>i1 : timing 3^30
o1 = 205891132094649
-- 4.77049e-17 seconds
o1 : Time</pre>
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<tr><td><pre>i2 : peek oo
o2 = Time{4.77049e-17, 205891132094649}</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="___Time.html" title="the class of all timing results">Time</a> -- the class of all timing results</span></li>
<li><span><a href="_time.html" title="time a computation">time</a> -- time a computation</span></li>
<li><span><a href="_cpu__Time.html" title="seconds of cpu time used since Macaulay2 began">cpuTime</a> -- seconds of cpu time used since Macaulay2 began</span></li>
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<div class="waystouse"><h2>For the programmer</h2>
<p>The object <a href="_timing.html" title="time a computation">timing</a> is <span>a <a href="___Keyword.html">keyword</a></span>.</p>
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