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seen May 9 at 2:17

May
9
comment Least Square Fitting
@AlexeiBoulbitch I usually write an answer in the comment if it can be expressed as one sentence. Anyway, thanks for your suggestion!
May
7
comment Least Square Fitting
Using Solve is an easy way: Solve[Log[y]==(*your answer from A*)/.x->Log[u],y]
Apr
11
comment How to plot stacked curves with sharing the horizontal axis
Please see here
Apr
10
comment A question about two ways to use Default
Thanks for your help!
Apr
10
accepted A question about two ways to use Default
Apr
10
comment How to solve correctly inside a DO loop and then plot
There are some warnings when solving your equation in the Do loop. You'd better correct the code. By the way, the solutions to your equations contains complex numbers, so the condition -1.01 < x < 1.01 might give you the void set.
Apr
10
awarded  Yearling
Apr
10
asked A question about two ways to use Default
Mar
11
comment Are there some other ways to solve a second PDE except DSolve?
@Nasser Thank you!
Mar
11
comment Are there some other ways to solve a second PDE except DSolve?
@xzczd Thanks for this information. I'll try it again.
Mar
11
asked Are there some other ways to solve a second PDE except DSolve?
Feb
17
comment “Save Graphic As…” does not include plot legends
Actually, you can use Export command to export your result as a picture such that Export["test.jpg",(*your result*)]. By this way the legend is included.
Feb
17
comment Convert number to exponent form with highest power possible
@NLCJ In @Rojo 's comment, exp=GCD @@ FactorInteger[n][[All,2]] is exp=Apply[GCD,FactorInteger[n][[All,2]]]. This may be make it clearer.
Feb
14
answered Assigning symbolic operators to built-in functions
Jan
20
comment Count the number of sqrt and 4th powers in a function
As suggested by @b.gatessucks,you should check the FullForm of this expression first. Besides, patterns of specified types includes _Integer,_Real,_Complex,_List,_Symbol and the general _head, where head is returned by Head. So there is no _Sqrt but _Power,because Head[Sqrt[x]] returns Power.
Jan
14
awarded  Critic
Jul
25
awarded  Scholar
Jul
25
accepted How to group lists that own one common element?
Jul
17
comment Conditioning on group of functions
@Amin That's right, but you have to declare the option Se before Bigin["Private"] in the form of Options[AbEst]={Se->False}, since you can't modify the variables in the context Private. If so, the definition of the function should be AbEst[b0_, u0_, method_, opts___?OptionQ] :=Module[{...,op=Se/.{opts}/.Options[AbEst]},...].
Jul
17
comment How to group lists that own one common element?
Thank you! Gather is more general and flexible than GatherBy.