John D'Errico

Retired

Last seen: Today | Attivo dal 2006

Followers: 28 Following: 0

Messaggio

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 2 anni fa | 4 download |

0.0 / 5

Inviato

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

circa 2 anni fa | 1 download |

0.0 / 5

Inviato

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

circa 2 anni fa | 1 download |

0.0 / 5

Inviato

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

circa 2 anni fa | 2 download |

5.0 / 5

Inviato

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

oltre 2 anni fa | 4 download |

0.0 / 5

Inviato

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

oltre 4 anni fa | 2 download |

4.5 / 5

Inviato

Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences

quasi 5 anni fa | 47 download |

4.8 / 5

Inviato

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

circa 6 anni fa | 1 download |

5.0 / 5

Inviato

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

quasi 7 anni fa | 35 download |

4.8 / 5

Inviato

Partitions of an integer
List all partitions of an integer

circa 7 anni fa | 8 download |

4.9 / 5

Inviato

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

oltre 7 anni fa | 3 download |

0.0 / 5

Inviato

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

quasi 8 anni fa | 43 download |

5.0 / 5

Inviato

The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers

circa 8 anni fa | 3 download |

5.0 / 5

Inviato

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

oltre 8 anni fa | 2 download |

5.0 / 5

Inviato

polyfitn
Polynomial modeling in 1 or n dimensions

quasi 9 anni fa | 242 download |

4.9 / 5

Inviato

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

quasi 9 anni fa | 10 download |

4.8 / 5

Inviato

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

quasi 9 anni fa | 2 download |

4.8 / 5

Inviato

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

circa 9 anni fa | 69 download |

4.9 / 5

Inviato

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

quasi 10 anni fa | 1 download |

5.0 / 5

Inviato

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

circa 10 anni fa | 2 download |

5.0 / 5

Inviato

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

circa 10 anni fa | 1 download |

5.0 / 5

Inviato

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

circa 10 anni fa | 26 download |

4.9 / 5

Inviato

Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP

oltre 10 anni fa | 20 download |

4.9 / 5

Inviato

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

oltre 10 anni fa | 37 download |

4.8 / 5

Inviato

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

quasi 11 anni fa | 34 download |

4.8 / 5

Inviato

nearestSPD
Finding the nearest positive definite matrix

oltre 11 anni fa | 22 download |

4.9 / 5

Inviato

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

circa 12 anni fa | 23 download |

5.0 / 5

Inviato

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

circa 12 anni fa | 8 download |

4.8 / 5

Inviato

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

oltre 12 anni fa | 29 download |

4.7 / 5

Inviato

interparc
Distance based interpolation along a general curve in space

oltre 12 anni fa | 35 download |

5.0 / 5

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