# Doug Hull

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The MathWorks

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http://blogs.mathworks.com/videos/

MATLAB user since 1994. MathWorker since 2001. Author of one MATLAB textbook, co-author of a second, contributor to a third.

Now I blog and make movies about the cases that come to me for advanced support.

I am writing my own poker book:
http://blog.threebarrelbluff.com/p/books.html

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Doug Hull submitted a Comment to Problem 753. Solitaire Cipher

Made a quick change. This should cause a lot of old solutions to fail. Will process the queue as fast as possible! Thanks!

on 11 Apr 2013

Doug Hull submitted a Comment to Problem 753. Solitaire Cipher

Yaroslav, I agree entirely. Unfortunately, every time on other problems that I changed the test suite, the look up tables just came back anyways. We need to eventually randomize test suites. When that is supported well, I will do it! Doug

on 11 Apr 2013

Doug Hull received Famous badge

on 29 Mar 2013

on 8 Mar 2013

on 10 Jan 2013

Doug Hull submitted a Comment to Solution 133608

Added new test, should be re scored soon. Thank you!

on 26 Dec 2012

on 29 Nov 2012

Doug Hull submitted a Comment to Problem 621. Cryptomath: Addition

Note in the instructions: "No left hand zeros"

on 22 Oct 2012

Doug Hull submitted a Comment to Problem 621. Cryptomath: Addition

Suresh, Which test case? Please be more explicit. These were all taken from a list of known problems, so I need more info to understand if one is flawed.

on 18 Oct 2012

on 5 Oct 2012

on 5 Oct 2012

Doug Hull submitted a Comment to Solution 120005

William, Why are for loops not cool?

on 26 Sep 2012

For which test statement is there not a unique solution? We need to fix the test suite if there are two answers of same score.

on 7 Aug 2012

@Jean, Huh? Is that a suggestion to add a test?

on 6 Aug 2012

@Lin, I think it is timing out. Why are you making your own tests anyways?

on 6 Aug 2012

Doug Hull submitted a Comment to Problem 753. Solitaire Cipher

Any problem will work not just ones in this category.

on 23 Jul 2012

Doug Hull submitted a Comment to Problem 753. Solitaire Cipher

Richard, Being Wikipedia, I just copied the algorithm this test suite was built on. Thanks! Doug

on 18 Jun 2012

on 14 Jun 2012

on 14 Jun 2012

Doug Hull submitted a Comment to Problem 753. Solitaire Cipher

Richard, I see the difference in our code: if j2==27 d=[28 d(2:26) d(28) d(1)]; end proper implementation would be: if j2 == 27 d = [d(1) 28 d(2:26) d(28)]; end Basically, it has to skip two cards down the deck. I will clean up the wording, as I have seen several do this on internal implementations here too. Thanks, Doug

on 14 Jun 2012

Oops. Fixed. thank you.

on 11 Jun 2012

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on 8 Jun 2012

Doug Hull submitted a Comment to Solution 27499

I just added a test point of x = 11. The answer should be 28. It is.

on 8 Jun 2012

Doug Hull submitted a Comment to Solution 85685

I should have known! :) Next problem is, how many times can you expect to submit that solution! :)

on 8 May 2012

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on 1 May 2012

Doug Hull submitted a Comment to Solution 84171

NICE!

on 1 May 2012

on 30 Apr 2012

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on 30 Apr 2012