reference/math/functions/sqrt.xml
61374bbe228e8e9c55a24aba59a1e2bb2a871148
61374bbe228e8e9c55a24aba59a1e2bb2a871148
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&reftitle.returnvalues;
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<para>
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The square root of <parameter>num</parameter>
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or the special value <literal>NAN</literal> for negative numbers.
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or the special value <constant>NAN</constant> for negative numbers.
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</para>
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</refsect1>
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<refsect1 role="examples">
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