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Nov
8
comment FindRoot errors
...phbbhtt.. my brains are fried. Ocfcourse.. I know what badFactor is.. literally ... I can't believe I asked the second part of the question. :)
Nov
8
comment FindRoot errors
@b.gatessucks whoa.. I got {-3.67838*10^-9, 208.209} when I tried {f1, f2} /. fr. Whats going on?
Nov
8
comment FindRoot errors
ok cool. so is the idea that f2(x)=good(x)*bad(x) then if bad(a)!=Infinity and good(a)=0 then a is a solution to f2 ? In my example, badFactor/.sol is around 10^16.. can we say that that's not (or not going to) Infinity?
Nov
8
comment FindRoot errors
@sebhofer... that's pretty cool. I'm trying to read Daniel's answer but since it has details of the other question, it is not immediately clear to me why Rationalize reduces any numerical instability or other issues. If you can expand a bit on why Rationalize works then that would be awesome Thanks
Nov
8
accepted DeleteCases messing with my mind
Nov
8
asked FindRoot errors
Nov
5
comment DeleteCases messing with my mind
@J.M. oh sweet... thank you!
Nov
5
comment DeleteCases messing with my mind
@rm-rf.. thank goodness I'm not the one losing it. So is there a way to get around this?
Nov
5
asked DeleteCases messing with my mind
Nov
4
comment EdgeRenderingFunction and Graph input output structure
Thanks for your answer. I'm a bit swamped this month so I'll respond properly a bit later. Thanks.
Nov
4
accepted Plot showing discontinuity where it shouldn't
Nov
4
comment Plot showing discontinuity where it shouldn't
@kguler Thank for for such an excellent explanation! I learnt about using limits in mathematica, especially inside a plot, as an additional bonus. :) It's interesting that you spotted that taking limits makes mathematica realize that the curve is continuous. cool beans!
Oct
26
comment Plot showing discontinuity where it shouldn't
@Artes but 1/2 (2 a x + (a - x)^2 UnitStep[-a + x]) is a continuous and even differentiable function whose derivative should be Max[x,a]. I guess MMA is not able to figure this out and I need to communicate it to MMA somehow.
Oct
26
comment Plot showing discontinuity where it shouldn't
@Artes ok that worked. Thanks! Do you have a sense of why I am getting an Intermediate when I differentiate?
Oct
26
asked Plot showing discontinuity where it shouldn't
Oct
23
comment EdgeRenderingFunction and Graph input output structure
@belisarius thanks. I'm happy to hear that I am complicating things. I'll try to find you in chat sometime.
Oct
23
comment Argmax in a List
@Mr.Wizard no but I suppose I could always sort it on the first column.
Oct
19
asked EdgeRenderingFunction and Graph input output structure
Oct
16
accepted Export to Excel gives error for large lists
Oct
16
comment Export to Excel gives error for large lists
Thanks a lot for your answer. Do you have a sense of why this is working for *.xls but not for *.xlsx ?