Rank: 4003 based on 10 downloads (last 30 days) and 2 files submitted
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Nick Henderson

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Stanford University, ICME

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04 Oct 2010 Hermite cubic interpolating polynomial with specified derivatives Computes piecewise cubic polynomial which interpolates function values and first derivatives. Author: Nick Henderson interpolation, piecewise polynomial 4 0
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5.0 | 1 rating
24 Apr 2010 LU factorization with complete pivoting. An implementation of algorithm 3.4.2 from Matrix Computations. Author: Nick Henderson linear algebra, lu, factorization, complete pivoting, gaussian elimination 6 0
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3.0 | 1 rating
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24 Apr 2010 MATLAB xUnit Test Framework MATLAB xUnit is a unit test framework for MATLAB code. Author: Steve Eddins

Steve, I would like to suggest a change in the default floor_tol for relative tolerances. The issue is when testing values that are near zero:

>> assertElementsAlmostEqual(1e-10,1e-9)
??? Input elements are not all equal within relative tolerance: 1.49012e-08
First input:
1.0000e-10
Second input:
1.0000e-09

At first glance the error message is confusing. Of course this works if the 'absolute' option is used or floor_tol is set to sqrt(eps).

I recommend setting floor_tol to sqrt(eps). This would give more consistent default behavior.

Cheers,
Nick
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23 May 2012 Hermite cubic interpolating polynomial with specified derivatives Computes piecewise cubic polynomial which interpolates function values and first derivatives. Author: Nick Henderson Radin, Max

25 Apr 2011 LU factorization with complete pivoting. An implementation of algorithm 3.4.2 from Matrix Computations. Author: Nick Henderson m, cidem

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complete pivoting, factorization, gaussian elimination, interpolation, linear algebra
Files Tagged by Nick View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
04 Oct 2010 Hermite cubic interpolating polynomial with specified derivatives Computes piecewise cubic polynomial which interpolates function values and first derivatives. Author: Nick Henderson interpolation, piecewise polynomial 4 0
  • 5.0
5.0 | 1 rating
24 Apr 2010 LU factorization with complete pivoting. An implementation of algorithm 3.4.2 from Matrix Computations. Author: Nick Henderson linear algebra, lu, factorization, complete pivoting, gaussian elimination 6 0
  • 3.0
3.0 | 1 rating

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