I want to solve this system in mathematica and i have applied various functions such as Solve, NSolve, etc. but none of them worked. could you help me how could i find my answer?
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I am working on a problem in which i have to generate a pattern similar to the one shown in this screenshot:
I have tried many different ways, but none are working.
I have seen some embroidery software which can generate this type of pattern, but I don't know the algorithm used to generate this patter.
Please help me, if someone knows anything about the algorithm.
Thank you!
I have been having trouble finding the best solutions to data structures and algorithms questions issued by interviewers. I was wondering how you guys approach these problems. Is it a matter of just practicing solving all kinds of problems to get the experience, or do you guys have systematic ways to recognize certain types of problems? Can you recommend books that could help me? I've reread a lot of Introduction to Algorithms by CLRS, and I'm sure I could refresh on fundamental CS concepts.
I have developed some common sense in recognizing types of problems. E.g. if I am able to recognize that solutions to later iterations of a problem depend on past solutions, and ultimately stem from known base solutions, I know this is a dynamic programming problem. Maybe I need to study more to further develop this common sense.
Thanks for reading.
I'm not sure SO is a best place for this question, but I recommend you "Cracking the Coding Interview" by Gayle Laakmann McDowell.
Classical books about algorithms are ok, but they focused on more fundamental and "academic" stuff. CCI is focused specially on solving interview questions.
if so, how does it work? I tried to find information on z3 about differential equations but I didn't find anything.
I think dReal (http://dreal.github.io/) is the only solver that provides support for ODEs, though I’m not an expert on this.
Also, see this paper for further details: https://arxiv.org/pdf/1310.8278.pdf
As the title says, I am really really really curious about this.
I've been trying to find the cases where you can't use backtracking to solve them but I can't find them.
Share your knowledge please
If there are too many possibilities to check, backtracking search will be impractical - see e.g. http://en.wikipedia.org/wiki/Lighthill_report. There may also be cases where you cannot state the problem simply and clearly enough to recognize the correct answer when you find it.
See: http://kks.cabal.fi/GoodEnoughSearch
I have gone through quite many papers and sites. I have not found where this algorithm has been presented before, or that someone has made something similar, but better or more general. The algorithm is pretty simple and thus should be found quite easily by anyone facing the same kind of problems I have faced.
It reminds me of the Monte Carlo method.
http://en.wikipedia.org/wiki/Monte_Carlo_method