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Singular Value Analysis of Cryptograms
The Singular Value Decomposition of the digram frequency matrix of a text coded with a simple substitution cypher can reveal...
quasi 12 anni fa
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Reverse Singular Value Decomposition
Employing a factorization based on the least significant singular values provides a matrix approximation with many...
circa 12 anni fa
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Higher Resolution Penny
High resolution measurements of the depth of the mold for the United States one cent coin provide an interesting data...
circa 12 anni fa
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Music, Sparse Matrices, and London Billboards
ContentsTim DavisSparse Matrix VisualizationsMusic VisualizationsMetastaseisBlue MondayElectrodoodleMorning Has BrokenBach...
circa 12 anni fa
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The Tektronix 4081
The Tektronix 4081 minicomputer at Argonne National Laboratory in the summers of 1977 and '78 played an important role in...
circa 12 anni fa
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Surprising SVD, Square Waves, and Pi
I am surprised when many of the singular values of a nonsymmetric variant of the Hilbert matrix turn out to be nearly equal...
circa 12 anni fa
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Magic Stars
Magic Stars are a little like Magic Squares. My grandson was introduced to them in his junior high school math class.......
circa 12 anni fa
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The Rosser Matrix
The Rosser matrix is a classic matrix eigenvalue test problem....
oltre 12 anni fa
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Fiedler Companion Matrix
The Fiedler companion matrix distributes the coefficients of a polynomial along the diagonals of an elegant pentadiagonal...
oltre 12 anni fa
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The Ardent Titan, part 2
Even though I am one of the founders of the MathWorks, I only acted as an advisor to the company for its first five years. ...
oltre 12 anni fa
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The Ardent Titan, part 1
Even though I am one of the founders of the MathWorks, I only acted as an advisor to the company for its first five years. ...
oltre 12 anni fa
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The Intel Hypercube, part 2, reposted
The first posting earlier today was truncated. Here is the complete post. Even though I am one of the founders of the...
oltre 12 anni fa
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The Intel Hypercube, part 2
The Intel Hypercube, part 2See The Intel Hypercube, part 2, repostedGet the MATLAB code (requires JavaScript) ...
oltre 12 anni fa
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The Intel Hypercube, part 1
Even though I am one of the founders of the MathWorks, I only acted as an advisor to the company for its first five years. ...
oltre 12 anni fa
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Complex Step Differentiation
Complex step differentiation is a technique that employs complex arithmetic to obtain the numerical value of the first...
oltre 12 anni fa
Inviato
The Lambert W Function
Real valued alternative to the lambertw function in the Symbolic Toolbox.
oltre 12 anni fa | 6 download |
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The Lambert W Function
The Lambert W function deserves to be better known. It pops up in all sorts of places. And our MATLAB function for...
oltre 12 anni fa
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Backslash
The backslash operator has come to represent both the matrix origins and the usability of MATLAB....
oltre 12 anni fa
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eigshow, week 3
An option in eigshow demonstrates SVD, the matrix singular value decomposition. The emphasis is on orthogonality.... read...
oltre 12 anni fa
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eigshow, week 2
Three more examples with eigshow, all of them degenerate in some way or another....
oltre 12 anni fa
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eigshow, week 1
One of my all-time favorite MATLAB examples is eigshow....
quasi 13 anni fa
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The LINPACK Benchmark
By reaching 33.86 petaflops on the LINPACK Benchmark, China's Tianhe-2 supercomputer has just become the world's fastest...
quasi 13 anni fa
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Lake Arrowhead Coauthor Graph Photos
Nick Trefethen has framed the original flip chart that I described in my Lake Arrowhead Coauthor Graph blog earlier this...
quasi 13 anni fa
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Lake Arrowhead Coauthor Graph
Twenty years ago, during the Householder Symposium at the Lake Arrowhead conference center , John Gilbert carried out one of...
quasi 13 anni fa
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Golden Spiral
A Golden Spiral is simulated by a continuously expanding sequence of golden rectangles and inscribed quarter circles.......
quasi 13 anni fa
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Pentium Division Bug Affair
In my previous blog post I reprinted the Cleve's Corner article from the 1995 issues of MATLAB News and Notes and SIAM News...
quasi 13 anni fa
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Pentium Division Bug Revisited
The Pentium division bug episode in the fall of 1994 was a defining moment for the MathWorks, for the Internet, for Intel...
quasi 13 anni fa
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Wilkinson’s Matrices
One of Jim Wilkinson's outstanding skills was his ability to pick great examples. A previous post featured his signature...
quasi 13 anni fa
