Set of real numbers: Difference between revisions

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Approx length of A - B is 2.07587</pre>
Approx length of A - B is 2.07587</pre>


=={{header|Mathematica}}==
=={{header|Mathematica}}/{{header|Wolfram Language}}==
<lang Mathematica>(* defining functions *)
<lang Mathematica>(* defining functions *)
setcc[a_, b_] := a <= x <= b
setcc[a_, b_] := a <= x <= b