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johnhenry's user avatar
johnhenry
  • Member for 9 years, 6 months
  • Last seen more than 3 years ago
5 votes
0 answers
626 views

Is there a decomposition $U U^T$?

2 votes
1 answer
14k views

Inverse Fourier transform of Gaussian

2 votes
0 answers
139 views

Fourier transform of a constant - Is it a function of distance only?

1 vote
1 answer
1k views

Integral (Fourier transform) of Heaviside radial function in 3D

1 vote
1 answer
67 views

Choleski decomposition of a positive matrix

1 vote
2 answers
49 views

Differential equation - help

1 vote
1 answer
285 views

Integration of a generic radial function in polar coordinates

0 votes
0 answers
38 views

Decomposition of a matrix into the square of another symmetric matrix

0 votes
1 answer
217 views

Product of triangular and symmetric matrices is triangular?

0 votes
0 answers
125 views

Problems with the inverse of a banded matrix: not invertible?

0 votes
1 answer
84 views

Getting $B$ from $A = M^t B M$ without inverting $M$

0 votes
0 answers
65 views

Minkowski functionals on Healpy

-1 votes
1 answer
48 views

First order non linear differential equation