3,676 reputation
1737
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location China
age
visits member for 2 years
seen 42 mins ago

Feel free to correct the grammar mistakes in my posts.


Jul
15
awarded  Revival
Jul
15
accepted Strange behavior of BinCounts
Jul
15
revised Strange behavior of BinCounts
add the tag "bugs"
Jul
15
answered Strange behavior of BinCounts
Jul
14
reviewed Approve suggested edit on Help to plot Poincare section for a system of delay differential equations
Jul
5
reviewed Reject suggested edit on Deleting all characters in a string that do not belong to a small set of elements
Jul
4
comment How can I solve my system of differential equations?
@raj As I mentioned in the comment above, the best choice here is to use ParametricNDSolveValue in v9, NDSolve approach should also be available, but I can't figure out where the shoe pinched without your specific code.
Jul
3
comment CompilationTarget->“C” crashes the kernel
Same problem with TDM-GCC-4.8.1, Mathematica 8.0.4, Vista 32bit. Well, in fact it's not the first time I found CompilationTarget -> "C" made trouble, but I haven't yet managed to reproduce this kind of problem with a simple enough example for so long.
Jul
3
reviewed Reject suggested edit on How to linearize an expression automatically?
Jul
2
awarded  Curious
Jun
25
comment how to solve second order nonlinear coupled differential equations using NDSolve with hyperbolic function
@ameera "StartingInitialConditions" is just a guess, here I just choose it casually. For your equations there're many available "StartingInitialConditions", for example {x[0] == -1, x'[0] == -1, y[0] == 0, y'[0] == 0}, but it's also worth to mention that it can be really hard to choose proper initial conditions for some equations, for example this one.
Jun
18
reviewed Approve suggested edit on Displaying the roots of a complex function using ListCurvePathPlot
Jun
18
answered how to solve second order nonlinear coupled differential equations using NDSolve with hyperbolic function
Jun
18
answered RK4 Gravity Simulator
Jun
18
comment Smooth Peter de Jong attractor
I think it'll be better if you add the compiled code since the existed piece of code can't be compiled directly. Compile isn't easy for everyone :)
Jun
17
accepted Can a Symbol own OwnValues that don't evaluate when it's the head of an expression?
Jun
14
comment Can a Symbol own OwnValues that don't evaluate when it's the head of an expression?
Sorry to my late reply. I did intend to wait for an hour after posting this question but was beaten by sandman within 10 minutes 囧. @Rojo Yeah, you're right, thanks for editing the title, also, thanks for m_goldberg's polishing :D
Jun
13
asked Can a Symbol own OwnValues that don't evaluate when it's the head of an expression?
May
30
accepted Can I read Chinese characters with ReadList correctly?
May
30
awarded  Self-Learner