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<head><title>abs -- absolute value function</title>
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<div><h1>abs -- absolute value function</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>abs x</tt></div>
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<li><div class="single">Inputs:<ul><li><span><tt>x</tt>, a number</span></li>
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<li><div class="single">Outputs:<ul><li><span>the absolute value of <tt>x</tt></span></li>
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<div class="single"><h2>Description</h2>
<div><tt>abs x</tt> computes the absolute value of <tt>x</tt>.<table class="examples"><tr><td><pre>i1 : abs(-pi)
o1 = 3.14159265358979
o1 : RR (of precision 53)</pre>
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<tr><td><pre>i2 : abs(1+ii)
o2 = 1.4142135623731
o2 : RR (of precision 53)</pre>
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<div class="waystouse"><h2>Ways to use <tt>abs</tt> :</h2>
<ul><li>abs(CC)</li>
<li>abs(QQ)</li>
<li>abs(RR)</li>
<li>abs(ZZ)</li>
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