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John D'Errico


Retired

Last seen: Today Attivo dal 2006

Followers: 1   Following: 0

Contatto

A retired applied mathematician, consultant, sometime mechanical engineer, numerical analyst, woodworker, bridge player. Please DON'T contact me, as too many students then decide I am their personal consultant if I allow it. I won't do consulting by mail.

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Inviato


randpoly
Generate N uniformly distributed points inside a supplied polygon (or polyshape)

circa un anno fa | 2 download |

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allcrossings
Locate all intersections of a pair of functions f1 and f2, on a finite domain

circa un anno fa | 1 download |

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num2bin
Expression of all numbers in a variety of binary forms.

oltre un anno fa | 1 download |

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A limited set of basic number theoretic tools
Various tools for working with integers and their factors, primes, congruences, etc.

oltre un anno fa | 1 download |

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minkowskiSum
Compute the Minkowski sum of any two polygons or polyshapes, convex or concave.

oltre un anno fa | 10 download |

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

oltre 3 anni fa | 2 download |

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Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences

quasi 4 anni fa | 21 download |

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

circa 5 anni fa | 1 download |

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

circa 6 anni fa | 38 download |

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Partitions of an integer
List all partitions of an integer

circa 6 anni fa | 6 download |

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

quasi 7 anni fa | 1 download |

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

circa 7 anni fa | 65 download |

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The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers

circa 7 anni fa | 2 download |

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

oltre 7 anni fa | 3 download |

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polyfitn
Polynomial modeling in 1 or n dimensions

quasi 8 anni fa | 226 download |

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

quasi 8 anni fa | 20 download |

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

circa 8 anni fa | 5 download |

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

circa 8 anni fa | 91 download |

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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

circa 9 anni fa | 3 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

circa 9 anni fa | 3 download |

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

circa 9 anni fa | 6 download |

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

circa 9 anni fa | 41 download |

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Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP

oltre 9 anni fa | 32 download |

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

oltre 9 anni fa | 58 download |

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

quasi 10 anni fa | 47 download |

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nearestSPD
Finding the nearest positive definite matrix

oltre 10 anni fa | 37 download |

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

circa 11 anni fa | 21 download |

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

oltre 11 anni fa | 10 download |

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

oltre 11 anni fa | 25 download |

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interparc
Distance based interpolation along a general curve in space

oltre 11 anni fa | 68 download |

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