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Mar
26
comment Complete definition of special functions in Mathematica
I prefer pressing F1.
Mar
25
awarded  Popular Question
Mar
23
comment How to accelerate my code?
@Purboo "I think I need to learn Compile first." - Before that, I suggest you to read the last paragraph of this answer. "Sometimes it is not easy to write code using functions like Apply, Map and Thread. " - Yeah, sometimes, but quite rare in my opinion, in most cases, it's just because you're not familiar enough with the coding style of Mathematica.
Mar
22
comment Coupled non-linear differential equations
@Ricoleto As mentioned above, it's just a result of trial and error. Sadly it seems not to be able to handle Tmax=10, and I haven't think out a corresponding solution yet. I think it might help if you add some background information about your equations to your question. BTW, I just noticed that the b.c. in your code is different from what you claimed in the text i.e. $m(0,t)=m(\pi L,t)=v(0,t)=v(\pi L,t)$, is it intended?
Mar
21
reviewed Approve Square both sides of an equation?
Mar
21
revised How to propel the integration of time a little bit further? Numerical solution can not evolve to the max time
added 134 characters in body
Mar
21
revised How to propel the integration of time a little bit further? Numerical solution can not evolve to the max time
added 134 characters in body
Mar
21
answered How to propel the integration of time a little bit further? Numerical solution can not evolve to the max time
Mar
21
revised Coupled non-linear differential equations
deleted 2 characters in body
Mar
21
comment Coupled non-linear differential equations
Seems that this hasn't been done yet: Hello, welcome to Mathematica.SE! I suggest the following: 1) As you receive help, try to give it too, by answering questions in your area of expertise. 2) Read the faq! 3) When you see good questions and answers, vote them up by clicking the gray triangles, because the credibility of the system is based on the reputation gained by users sharing their knowledge. Also, please remember to accept the answer, if any, that solves your problem, by clicking the checkmark sign!
Mar
21
comment I have several functions and how I know which one is the maximum in a certain range?
Please post your code instead of the picture so we can test it easily.
Mar
21
revised Coupled non-linear differential equations
a new observation added.
Mar
21
revised Coupled non-linear differential equations
add a note.
Mar
21
answered Coupled non-linear differential equations
Mar
21
comment Protected tag in DSolve
Seems this hasn't been done: Hello, welcome to Mathematica.SE! I suggest the following: 1) As you receive help, try to give it too, by answering questions in your area of expertise. 2) Read the faq! 3) When you see good questions and answers, vote them up by clicking the gray triangles, because the credibility of the system is based on the reputation gained by users sharing their knowledge. Also, please remember to accept the answer, if any, that solves your problem, by clicking the checkmark sign!
Mar
21
answered Strange answer from StringReplace
Mar
20
comment Solving for flow speed?
"Is there some reason why this approach shouldn't work?" - Because it's a transcendental equation?
Mar
19
comment Very slow mathematica finite differences
@Jinxed When compiled to C, this is probably not true, see this and this for example.
Mar
19
revised Series expansion of NDSolve solution produced by shooting method
deleted 16 characters in body; edited title
Mar
19
revised Series expansion of NDSolve solution produced by shooting method
edited tags