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John D'Errico


Retired

Last seen: 1 giorno fa Attivo dal 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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Inviato


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

circa 20 ore fa | 0 download |

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

circa 2 anni fa | 3 download |

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Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences

oltre 2 anni fa | 28 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 4 anni fa | 2 download |

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

oltre 4 anni fa | 24 download |

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Partitions of an integer
List all partitions of an integer

oltre 4 anni fa | 21 download |

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

oltre 5 anni fa | 1 download |

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

oltre 5 anni fa | 119 download |

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The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers

circa 6 anni fa | 3 download |

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

oltre 6 anni fa | 8 download |

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polyfitn
Polynomial modeling in 1 or n dimensions

oltre 6 anni fa | 207 download |

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

oltre 6 anni fa | 19 download |

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

oltre 6 anni fa | 3 download |

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

oltre 6 anni fa | 78 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

oltre 7 anni fa | 2 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

oltre 7 anni fa | 2 download |

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

oltre 7 anni fa | 4 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 8 anni fa | 55 download |

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Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP

circa 8 anni fa | 45 download |

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

circa 8 anni fa | 56 download |

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

oltre 8 anni fa | 36 download |

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nearestSPD
Finding the nearest positive definite matrix

oltre 9 anni fa | 48 download |

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

circa 10 anni fa | 23 download |

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

circa 10 anni fa | 12 download |

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

circa 10 anni fa | 27 download |

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interparc
Distance based interpolation along a general curve in space

oltre 10 anni fa | 98 download |

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

oltre 10 anni fa | 9 download |

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

oltre 10 anni fa | 148 download |

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

oltre 10 anni fa | 7 download |

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fminsearchbnd, fminsearchcon
Bound constrained optimization using fminsearch

circa 11 anni fa | 183 download |

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