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Challenges Evaluate a single variable polynomial equation

Raku, 19 bytes (*Z*(*X**0..*)).sum Try it online! Is it concerning that my solution is over 30% asterisks? Explanation ( ).sum # Get the sum of *Z*( ) # The inp...

posted 4y ago by Jo King‭  ·  edited 4y ago by Jo King‭

Answer
#2: Post edited by user avatar Jo King‭ · 2020-11-15T12:21:04Z (almost 4 years ago)
  • # [Raku], 19 bytes
  • <!-- language-all: lang-perl6 -->
  • (*Z*(*X**0..*)).sum
  • [Try it online!][TIO-khj2txnr]
  • [Raku]: https://github.com/nxadm/rakudo-pkg
  • [TIO-khj2txnr]: https://tio.run/##PYyxDoIwGIT3PsU/SVvh0lZqNIYmDm7OxkgYGCAhASVUB56@ghiW73KXL9dXQ7sP3bips8DlQ3J5l1IBUgj4TxdOzJcj1Ry5KnC5na8xcl0IyhxtkZuC6tdAbfOsvHPwfdu8eZS4SAQNRYkjfTC/YFOPySxjOuPIDOw6Kdg5drCrGU9tQvo/WgSTwtgv "Perl 6 – Try It Online"
  • Is it concerning that my solution is over 30% asterisks?
  • ### Explanation
  • ~~~
  • ( ).sum # Get the sum of
  • *Z*( ) # The input list zip multiplied by
  • *X** # The second input to the power of
  • 0..* # 0 to infinity
  • ~~~
  • # [Raku], 19 bytes
  • <!-- language-all: lang-perl6 -->
  • (*Z*(*X**0..*)).sum
  • [Try it online!][TIO-khj2txnr]
  • [Raku]: https://github.com/nxadm/rakudo-pkg
  • [TIO-khj2txnr]: https://tio.run/##PYyxDoIwGIT3PsU/SVvh0lZqNIYmDm7OxkgYGCAhASVUB56@ghiW73KXL9dXQ7sP3bips8DlQ3J5l1IBUgj4TxdOzJcj1Ry5KnC5na8xcl0IyhxtkZuC6tdAbfOsvHPwfdu8eZS4SAQNRYkjfTC/YFOPySxjOuPIDOw6Kdg5drCrGU9tQvo/WgSTwtgv "Perl 6 – Try It Online"
  • Is it concerning that my solution is over 30% asterisks?
  • ### Explanation
  • ~~~
  • ( ).sum # Get the sum of
  • *Z*( ) # The input list zip multiplied by
  • *X** # The second input to the power of
  • 0..* # 0 to infinity
  • ~~~
  • An alternate curried solution for 19 bytes is:
  • <!-- language-all: lang-perl6 -->
  • {*.reduce(*×$_+*)}
  • [Try it online!][TIO-khj365hj]
  • [Perl 6]: https://github.com/nxadm/rakudo-pkg
  • [TIO-khj365hj]: https://tio.run/##K0gtyjH7n1uplmb7v1pLryg1pTQ5VUPr8HSVeG0tzdr/1lzFiZUKaRp60YaxmkDSIFbPNczRB6iwLLWoOFVTwdZOQVsv2ihWIS2/SCEnMy@12M5Or7ggJ7NEQ13XTl3T@r@hnoGCrp2CoYURmOIC8nUUjCCCJiDCkstIzxQuZKBnCqKM9UzhKnWAPCBhAjUIosDIRM/IFAA "Perl 6 – Try It Online"
#1: Initial revision by user avatar Jo King‭ · 2020-11-15T12:14:54Z (almost 4 years ago)
# [Raku], 19 bytes

<!-- language-all: lang-perl6 -->

    (*Z*(*X**0..*)).sum

[Try it online!][TIO-khj2txnr]

[Raku]: https://github.com/nxadm/rakudo-pkg
[TIO-khj2txnr]: https://tio.run/##PYyxDoIwGIT3PsU/SVvh0lZqNIYmDm7OxkgYGCAhASVUB56@ghiW73KXL9dXQ7sP3bips8DlQ3J5l1IBUgj4TxdOzJcj1Ry5KnC5na8xcl0IyhxtkZuC6tdAbfOsvHPwfdu8eZS4SAQNRYkjfTC/YFOPySxjOuPIDOw6Kdg5drCrGU9tQvo/WgSTwtgv "Perl 6 – Try It Online"

Is it concerning that my solution is over 30% asterisks?

### Explanation 
~~~
(             ).sum  # Get the sum of
 *Z*(        )       # The input list zip multiplied by
     *X**            # The second input to the power of
         0..*        # 0 to infinity
~~~