ywdr1987

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A lonely clown...


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Jan
13
 awarded  Editor
Jan
13
 revised Is it possible to use PatternTest and Optional value on one Pattern simultaneously?
added 5 characters in body; edited title
Jan
13
 comment Is it possible to use PatternTest and Optional value on one Pattern simultaneously?
@LeonidShifrin Wow! I'm reading your book MathProgrammingIntro now. I have learned a lot. Thank you~
Jan
13
 accepted Is it possible to use PatternTest and Optional value on one Pattern simultaneously?
Jan
13
 comment Is it possible to use PatternTest and Optional value on one Pattern simultaneously?
Thanks for your answer and modification.
Jan
13
 asked Is it possible to use PatternTest and Optional value on one Pattern simultaneously?
Dec
11
 accepted How to use Optional as an omissible parameter in pattern-match?
Dec
10
 comment How to use Optional as an omissible parameter in pattern-match?
With your definition of intPolyQ, it turns out that intPolyQ[#, x] & /@ {x, 2 x, 2 x + 1, 2 x^2 + 3 x, 2 x^2 + 3 x + 1} returns {False, False, False, True, False} in my computer! What's wrong!? @Jens
Dec
10
 awarded  Scholar
Dec
10
 awarded  Supporter
Dec
10
 awarded  Student
Dec
10
 asked How to use Optional as an omissible parameter in pattern-match?