Reputation
62,497
Next tag badge:
392/400 score
85/80 answers
Badges
5 64 169
Newest
 Nice Answer
Impact
~516k people reached

9h
comment ParametricNDSolve of differential equation with singularity
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!
1d
answered Infinite Expression Error NDSolve
1d
revised Keeping a plot fixed as one parameter changes in Manipulate
Clarification
1d
comment Infinite Expression Error NDSolve
NDSolve solves a DE for the highest-order derivative. At the initial condition, it will divide by zero (i.e. by r^2 for r == 0).
1d
reviewed Reopen NonlinearModelFit errors and precision
1d
reviewed Close Reset Options to Default
1d
revised Keeping a plot fixed as one parameter changes in Manipulate
Added explanation about code
1d
answered Keeping a plot fixed as one parameter changes in Manipulate
1d
comment Plotting the tangent of a curve
This use of Series is also described in here and used to plot the tangent line [here]{mathematica.stackexchange.com/a/10673).
1d
answered How to make a Line[] with no end?
1d
comment Ask about the variable and constants in partial derivative in a loop
@Shellp Don't worry about it too much. It's not the first time it's happened. But it helps to keep the site coherent for future visitors with the same or similar problems, if the answers and questions go together. (It also keeps the orphaned answers from looking like the poster couldn't even read the question.) Thanks for the response, and cheers.
1d
comment Plotting the tangent of a curve
@YvesKlett Yes, but I don't have it. I say yes because someone asked Mr.Wizard, who said it was a script he developed. I've never bothered to learn how to do such things. Alternatively, I have an MSE notebook with init cells that have things like this in them: qlink[n_] := StringReplace["[(qn)](http://mathematica.stackexchange.com/q/qn)", "qn" :> ToString[n]]
1d
comment Plotting the tangent of a curve
There are plenty of answers on the site that seem to address this question: (10669), (18090), (74015); and a bunch of other possibilities. If those answer do not address your question, please indicate how.
1d
comment Plotting the tangent of a curve
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!
1d
comment Ask about the variable and constants in partial derivative in a loop
It's bad form to alter a question so much, esp. to add a requirement of a loop where there was none originally. You make the answers and work others have done on your behalf seem irrelevant. SE is not a private consulting service but a public Q&A forum. Please, either ask the question you need to ask the first time, or ask a new question.
2d
comment Demonstration Confusion
Try the menu command Cell > Grouping > Open All Subgroups
2d
comment Map an Argument to a list of functions
@Guesswhoitis. I would have said it's a duplicate of the first example in the docs for Through.
2d
comment What's wrong with Simplify and FullSimplify?
Note that Refine[eq, {x>0, y>0}] gives slightly different results, and not all correct. Another workaround seems to be to use arbitrary precision numbers: N@Simplify[SetPrecision[eq, $MachinePrecision], Assumptions -> {x > 0, y > 0}]. (V10.1, Mac OSX)
2d
comment Need help with the Lagrange multiplier method
Similar: mathematica.stackexchange.com/q/78400, mathematica.stackexchange.com/q/63351, mathematica.stackexchange.com/q/36847
2d
comment Failure in integrating from an interpolating function!
@kirma, In V10.1 (OSX), I get the messages but the NIntegrate goes through and gets the right answer. As you point out, the warnings are coming from the inside NIntegrate, but the outside NIntegrate seems not to care much. One could view this as a compromise position, allowing the computation but warning the user in case it's a mistake.