Mimicking Günther Uecker's nail art
Why doesn't Mathematica recognise two integrals as equal?
Apply function to all first arguments of a nested list of rules
Make association with deepest rules from nested association
Numerical solution of second-order linear hyperbolic PDE
Implementation of SINC filter using Integrate results in incorrect output
How to produce a Calder mobile?
Mimicking Günther Uecker's nail art https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292071
One of my favourite contemporary artists is Günther Uecker (born 13 March 1930 in Crivitz, Germany). He uses hammer and nails to create VectorPlot -like structures. ... [plotting] [graphics] [vector]
asked by eldo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14254 Score of 8 answered by vindobona https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58868
Score of 7 Why doesn't Mathematica recognise two integrals as equal? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292137
The following expression $$\int_{0}^{t} f(t_0) \,dt_0 - \int_{0}^{t} f(t_1) \,dt_1 = 0$$ is zero because it is just a change of integration variable. Why doesn't Mathematica give zero in this case? <... [calculus-and-analysis] [simplifying-expressions]
asked by Luca https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=85902 Score of 7 answered by I. C. Lin https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=94800
Score of 4 Apply function to all first arguments of a nested list of rules https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292197
Currently, I have a nested list of rules of the form lst1={1->a,2->{3->c,4->d,5->{6->f,7->{8->h,...}}}} (where I don't know the length of ... [list-manipulation] [replacement] [pattern-matching] [nested-function]
asked by cstover https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=20079 Score
of 5 answered by Syed https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=81355
Score of 5 Make association with deepest rules from nested association https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292009
I want to extract only the deepest level of association in a nested associations. An example of input data is ... [associations]
asked by user14061 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14061 Score
of 5 answered by lericr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=84894
Score of 5 Numerical solution of second-order linear hyperbolic PDE https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292108
(I'm also searching for analytical solutions to this PDE; check the bountied questions here and here if you have any ideas) I'm trying to find the numerical solution of the following 2D second-order ... [differential-equations] [finite-element-method]
asked by pp.ch.te https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=48527 Score of 4 answered by Ulrich Neumann https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53677
Score of 1 Implementation of SINC filter using Integrate results in incorrect output
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292127
Bug introduced in 6.0, persisting through 13.3.1. This is SINC filter, integrate $|H|^2$ from $-\pi/2$ to $\pi/2$. MMA CODE, Result = 7.27956e-12 ... [calculus-and-analysis] [numerical-integration] [bugs] [complex]
asked by Ring https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=82659 Score of
4 answered by xzczd https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1871
Score of 8 How to produce a Calder mobile? https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=292212
Alexander Calder (1898 - 1976) was an American artist known for for his mobiles and his public sculptures. Here are two examples of his mobiles which I want to approximately reproduce with ... [plotting] [graphics] [graphs-and-networks]
asked by eldo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14254 Score of
3 answered by ydd https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72953
Score of 2