61,716 reputation
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location Argentina
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visits member for 2 years, 10 months
seen 15 mins ago

Code for my breathing avatar here


You may contact me at: BelisariusForSO@gmail.com

But please don't email me with requests about Q&A. Post them in the site instead.

Infix should be used only where it is essential... like in "feliz año nuevo" @rm-rf


Mar
24
revised RegionPlot giving an “invalid comparison” error
deleted 58 characters in body
Mar
23
revised How to get diagonal matrix D from matrix multiplication of $s^{-1}$, P, and S
deleted 4 characters in body
Mar
22
comment How does NIntegrate evaluate a piecewise range of x,y?
If my memory doesn't fail, the intermediate points in the NIntegrate range specification are just for declaring places where the function may need some special care (for example singularities, discontinuous behavior, etc)
Mar
22
comment Intersection of Osculating Circle with a Parametric Curve
@Artes Yep, I understand. I was thinking that Daniel's explanation could enrich his answer. Thanks!
Mar
22
comment Intersection of Osculating Circle with a Parametric Curve
I think you may explain the role of lam
Mar
21
comment Function behavior based on Head
@Kuba Ok,forget it. Perhaps the OP will understand my question (or me his)
Mar
21
comment Function behavior based on Head
@Kuba Sorry,just to understand the question. What is wrong with function[h_] := 0; function[p_[x]] := 1; Print[{function[f[x]], function[f]}] ?
Mar
21
comment BSplineFunction derivatives wrong if using weights?
@gdir The OP hasn't been on the site since September, don't count on a quick answer
Mar
21
comment Choosing $n$ equidistant points on a circle with given radius and center
f[center_, radius_, n_] := Graphics[Point@({Re@#, Im@#} + center & /@ (radius E^(I 2 Pi Range@n/n))), Frame -> True] :)
Mar
21
comment HypergeometricPFQ
Take a look at (34) (34bis) and (35) here mathworld.wolfram.com/GeneralizedHypergeometricFunction.html .Perhaps some of them apply
Mar
21
comment Fill below two functions.
@Mr.Wizard The real strength of this site is based upon sharing, healthy collaboration and some humor. We're not going to be bold about a few minor disagreements like this one!
Mar
21
comment Fill below two functions.
@Mr.Wizard Ok. We disagree. I guess that's becoming an standard :)
Mar
21
reviewed Leave Open FindFit (Jacobian Error)
Mar
20
comment “Off-label use” of Mathematica functions for performance
Please define "acquaintance"
Mar
20
comment FindFit (Jacobian Error)
@MichaelE2 I'm trying data2 = Table[{x, x^2}, {x, -2, 2, 0.1}]; FindFit[DeleteCases[data2, {x_, _} /; x == 0], a x^d, {a, d}, x] That's why we get different results
Mar
20
revised FindFit (Jacobian Error)
edited title
Mar
20
comment FindFit (Jacobian Error)
@MichaelE2 It gives me the same error
Mar
20
comment Boundary Value Problem- using NDSolve or another method
I get NDSolve::deqn: Equation or list of equations expected instead of y1 in the first argument please test your code on a fresh Mathematica session
Mar
20
revised Boundary Value Problem- using NDSolve or another method
rolled back to a previous revision
Mar
20
revised Boundary Value Problem- using NDSolve or another method
deleted 86 characters in body