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visits member for 2 years, 5 months
seen 20 hours ago

Jun
6
awarded  Enthusiast
Jun
5
comment Image of input and output cells is not exported correctly
My computer is set up with dual monitor, and I discovered by accident that the problem described here only occurs when the notebook in question is on one of the two monitors. It will probably be too difficult to reproduce this problem, thus my vote to close.
Jun
4
comment Eliminate doesn't work in Mathematica
Why is the last option for variables {(Q^(0, 2))[x, t], (Q^(1, 0))[x, t]}?
Jun
4
accepted Displaying a series obtained by evaluating a Taylor series
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
@J.M. I am not sure I understand why your code is neater given that it is significantly longer. Is there a fringe case where List @@ Series[Log[1+x],{x,0,n}] /. x->x0 fails? Also is there a reason why the use of With is advisable in this case?
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
I have only used With to give name to an expression I will use repeatedly. Looking at the help file again, I found out that I can also use With to insert values into held expressions. The one thing which still puzzles me is your use of seemingly redundant condition /; True. If I take this part out, the With[...] pieces in HoldForm will not be evaluated. What is going on?
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
I get it now! The whole expression is matched by the LHS of the rule. Your examples for comparison helped a lot.
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
Looks like you saw the comment I accidentally added and deleted soon afterwards.
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
The documentation says that it "applies a rule or list of rules in an attempt to transform each subpart of an expression expr". In my mind, ReplaceAll is about locally replacing subexpressions in a list. The injector pattern does not return anything to the original list, so I find it really strange. The example {a,b} /. {x__} :> x, which returns Sequence[a,b] shows that my understanding is off the mark. Why does it not return {Sequence[a,b]}?
Jun
3
comment Displaying a series obtained by evaluating a Taylor series
I just looked up SlotSequence. This is a useful trick to remember.
Jun
3
comment Image of input and output cells is not exported correctly
@Mr.Wizard The image Szabolcs's uploader produces looks great: i.stack.imgur.com/jRg2e.png. I will look at his code. Thanks!
Jun
3
comment Image of input and output cells is not exported correctly
@R.M Wouldn't it take some work to cut out the relevant parts if we used a screen shot?
Jun
3
comment Image of input and output cells is not exported correctly
@Mr.Wizard Mine is set for Infinity as well. I suspect that this is a Linux-specific problem (again).
Jun
3
asked Image of input and output cells is not exported correctly
Jun
3
revised Displaying a series obtained by evaluating a Taylor series
added horizontal rules
Jun
3
asked Displaying a series obtained by evaluating a Taylor series
May
18
comment How to plot imaginary part of a function
I like the trick you used to draw branch cuts.
May
18
awarded  Disciplined
May
18
comment nested numerical integration: not valid limits?
Done with the edits. Please feel free to revert to the original post or make changes. I really do not mean to be difficult.
May
18
revised nested numerical integration: not valid limits?
I included the code from an earlier post and reformat it so that the initialization cells can be copied and pasted.