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Macaulay2-1.3.1-8.fc15.i686.rpm

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<head><title>recursionDepth -- the current recursion depth</title>
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<div><h1>recursionDepth -- the current recursion depth</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>recursionDepth()</tt></div>
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<li><div class="single">Outputs:<ul><li><span><span>an <a href="___Z__Z.html">integer</a></span>, the current depth of recursion in the interpreter</span></li>
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<div class="single"><h2>Description</h2>
<div><table class="examples"><tr><td><pre>i1 : recursionDepth()

o1 = 0</pre>
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<tr><td><pre>i2 : f = x -> recursionDepth()

o2 = f

o2 : FunctionClosure</pre>
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<tr><td><pre>i3 : f()

o3 = 1</pre>
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<tr><td><pre>i4 : g = x -> f()

o4 = g

o4 : FunctionClosure</pre>
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<tr><td><pre>i5 : g()

o5 = 2</pre>
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Tail recursion optimization may be in effect, so there the answer may not always be what you expect.<table class="examples"><tr><td><pre>i6 : r = i -> if i == 100 then recursionDepth() else r(i+1)

o6 = r

o6 : FunctionClosure</pre>
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<tr><td><pre>i7 : r 0

o7 = 1</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_recursion__Limit.html" title="set the limit on recursion">recursionLimit</a> -- set the limit on recursion</span></li>
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