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daanhb/Julia-tutorial
LowRankArray technically incorrect

I think it s a good example, but the definition of rank and + together are incorrect. For example julia A = LowRankMatrix(rand(10,2), rand(10,2)); julia rank(A+A+A+A+A+A) 12 a 10x10 matrix cannot ...
  • goretkin
  • 5
  • Opened 
    on Nov 6, 2015
  • #3

daanhb/Julia-tutorial
fft benchmark problems

You wrote: image However, for such a small transform, you re seeing a lot of overhead in fft(a) from setting up the FFT plan, setting up the trig tables, etcetera. To really get the full benefit of FFTW, ...
  • stevengj
  • 5
  • Opened 
    on Nov 5, 2015
  • #2

daanhb/Julia-tutorial
Error in matvec

Great tutorial. I think you have an error in your matvec example: function matvec(A, x) B = zeros(size(A,1)) for j = 1:size(A,1) for i = 1:size(A,2) B[i] = B[i] + A[i,j]*x[j] ...
  • GlenHertz
  • 1
  • Opened 
    on Nov 5, 2015
  • #1
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