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John D'Errico


Retired

Last seen: Today Active since 2006

DON'T contact me. I won't answer questions. PERIOD. I don't do your homework. I won't do consulting. A retired mathematician, numerical analyst, woodworker, bridge player.

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Submitted


randFixedLinearCombination
Uniform random samples over a n-dimensional hyper-rectangle, subject to a linear equality constraint

ongeveer een jaar ago | 1 download |

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Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences

meer dan een jaar ago | 21 downloads |

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Divisors of a number, perfect, amicable, and sociable number
Tools to work (and play) with the divisors of a number

meer dan 2 jaar ago | 2 downloads |

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HPF - a big decimal class
High precision floating point arithmetic, a new class written in MATLAB

meer dan 3 jaar ago | 30 downloads |

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Partitions of an integer
List all partitions of an integer

meer dan 3 jaar ago | 11 downloads |

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The permanent of any matrix (square or not)
The permanent of any matrix, square or not

meer dan 4 jaar ago | 2 downloads |

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SLM - Shape Language Modeling
Least squares spline modeling using shape primitives

meer dan 4 jaar ago | 111 downloads |

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The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers

meer dan 4 jaar ago | 3 downloads |

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base2base(Nstart,bstart,bend)
Numeric base conversion between any two numeric bases, for any size integer.

ongeveer 5 jaar ago | 7 downloads |

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polyfitn
Polynomial modeling in 1 or n dimensions

meer dan 5 jaar ago | 189 downloads |

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Optimization Tips and Tricks
Tips and tricks for use of the optimization toolbox, linear and nonlinear regression.

meer dan 5 jaar ago | 18 downloads |

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movingstd & movingstd2
A (fast) windowed std on a time series (or array)

meer dan 5 jaar ago | 4 downloads |

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Surface Fitting using gridfit
Model 2-d surfaces from scattered data

meer dan 5 jaar ago | 99 downloads |

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Batched partitioned nonlinear least squares
Speed up when you have a very large number of nonlinear least squares problems, but with one model

meer dan 6 jaar ago | 1 download |

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export_search_path
Allows the user to transfer your search path from an old MATLAB release to a new release

meer dan 6 jaar ago | 2 downloads |

Submitted


Adaptive numerical limit (and residue) estimation
Numerical extrapolation of a limit (with an error estimate) from only function values

meer dan 6 jaar ago | 2 downloads |

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Variable Precision Integer Arithmetic
Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported.

meer dan 6 jaar ago | 52 downloads |

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Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP

bijna 7 jaar ago | 19 downloads |

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Adaptive Robust Numerical Differentiation
Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian

bijna 7 jaar ago | 65 downloads |

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A suite of minimal bounding objects
Suite of tools to compute minimal bounding circles, rectangles, triangles, spheres, incircles, etc.

meer dan 7 jaar ago | 27 downloads |

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nearestSPD
Finding the nearest positive definite matrix

ongeveer 8 jaar ago | 34 downloads |

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distance2curve
Find the closest point on a (n-dimensional) curve to any given point or set of points

meer dan 8 jaar ago | 25 downloads |

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Inverse (integrated) gradient
Vectorized & fully sparse 1-d, 2-d, & 3-d integrated gradients

bijna 9 jaar ago | 15 downloads |

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Inhull
Efficient test for points inside a convex hull in n dimensions

ongeveer 9 jaar ago | 33 downloads |

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interparc
Distance based interpolation along a general curve in space

ongeveer 9 jaar ago | 72 downloads |

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IPDM: Inter-Point Distance Matrix
An efficient and accurate Inter-Point Distance Matrix

ongeveer 9 jaar ago | 6 downloads |

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inpaint_nans
Interpolates (& extrapolates) NaN elements in a 2d array.

ongeveer 9 jaar ago | 113 downloads |

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FresnelS and FresnelC
Efficient and accurate computation of the Fresnel sine and cosine integrals

meer dan 9 jaar ago | 9 downloads |

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fminsearchbnd, fminsearchcon
Bound constrained optimization using fminsearch

meer dan 9 jaar ago | 172 downloads |

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arclength
Compute the arclength of a general curve in any number of dimensions

meer dan 9 jaar ago | 36 downloads |

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