Knuth's power tree: Difference between revisions

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 {{task|Knuth's power tree}}
-(Knuth's power tree is used for computing &nbsp; <big><big>x<sup>n</sup></big></big> &nbsp; efficiently using Knuth's power tree.) <br>
+(Knuth's power tree is used for computing &nbsp; <big><big>x<sup>n</sup></big></big> &nbsp; efficiently.)<br>
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-Then, using those integers, calculate and show the exact (not approximate) value of (at least) the integer powers below:
+Then, using those integers, calculate and show the exact values of (at least) the integer powers below:
 ::* &nbsp; <big>2<sup>n</sup></big> &nbsp; &nbsp; where &nbsp; n &nbsp; ranges from &nbsp; 0 ──► 17 &nbsp; (inclusive) <br>
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 A &nbsp;''zero''&nbsp; power is often handled separately as a special case.
-Optionally, support negative integers &nbsp; (for the power).
+Optionally, support negative integer powers.