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 Apr 11 comment Possible Bug in LinearSolveFunction with Sparse Vectors Also reproduces in v8.0.4 and v9.0.1, win10 64bit. Apr 9 comment Compute inverse Laplace transform with Integrate @J.M. Yeah, exactly. Apr 3 comment Solve non-linear system of 16 equations You need a space between variables to represent the multiplication e.g. k o rather than ko. Mar 29 comment Notebook contents changed upon re-opening Dude, let's have a chat here, in Chinese: chat.stackexchange.com/rooms/37664/dcydhb Mar 29 comment Need help solving a polynomial system @ShadowWizard J.M. is just fulfilling his campaign promise :) : chat.stackexchange.com/transcript/message/6204161#6204161 Mar 29 comment Why can't FindFit get the proper result in this problem? @Sektor The original post is indeed an answer (of course a bit too brief). Now it should meet the standard. Mar 25 comment Computation of Hankel Transform using FFT (Fourier) I think the HankelTransform in the definition of F0 should be DiscreteHankelTransform? Mar 25 comment How to make a better Sort in my case Interesting, I didn't know "." doesn't take part in sorting. Mar 25 comment How to make a better Sort in my case @yode Then why it doesn't mean "42, 1st"? Is the serial number limited to 1~10? (Notice that even "12" will cause trouble! ) Mar 25 comment How to make a better Sort in my case @yode Then since the serial number isn't limited to 0~9, your naming rule turns out to be unclear. For example, should "42" be taken as "42, 1st" or "4, 2nd"? Mar 25 comment How to make a better Sort in my case I did check More when posting the previous comment but can't find options that seem to related to fonts, maybe they're not translated to 字体, I'm not sure. Mar 25 comment How to make a better Sort in my case @yode Oh, so there're functions for string padding in v10. (I'm still in v9. ) Mar 25 comment How to make a better Sort in my case You should check 排序方式, not 分组依据 囧 Mar 25 comment How to make a better Sort in my case Your screenshot looks quite strange, where's Name(名称)? And I can't find fonts related options in my OS, I'm using Win10, too. Mar 25 comment Solve a system of nonlinear ODE As to the "become True" part, read this: mathematica.stackexchange.com/a/46239/1871 Mar 22 comment What's the syntax to compile these functions, whose arguments are nested lists? Is the argument the only irregular part? I mean, when the argument is passed into the body of Compile ,will they still be irregular, or be broken up into regular lists? Mar 20 comment Strange Error with Initialization within Animate Interesting, I thought Animate is just a Manipulate with ControlType -> Animator! Mar 20 comment Rearrange generic expression into a quartic polynomial @MarcoB Actually in v9.0.1 without the change of variable Solve still manage to find the solution in a few seconds, no matter $i$ represents imaginary number or not. Mar 20 comment Rearrange generic expression into a quartic polynomial Also remember to clarify if $i$ represents imaginary number. Mar 19 comment Why Unevaluated doesn't work on unheld side of Rule/RuleDelayed? @Xavier It's that question that motivates me to ask this :)