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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

alrededor de 1 año ago | 2 downloads |

Submitted


Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences

más de 1 año ago | 34 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

casi 3 años ago | 2 downloads |

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

más de 3 años ago | 16 downloads |

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Partitions of an integer
List all partitions of an integer

más de 3 años ago | 23 downloads |

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

más de 4 años ago | 2 downloads |

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

más de 4 años ago | 93 downloads |

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The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers

casi 5 años ago | 4 downloads |

Submitted


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

más de 5 años ago | 5 downloads |

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polyfitn
Polynomial modeling in 1 or n dimensions

más de 5 años ago | 186 downloads |

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

más de 5 años ago | 20 downloads |

Submitted


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

más de 5 años ago | 8 downloads |

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

más de 5 años ago | 78 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

más de 6 años ago | 1 download |

Submitted


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

más de 6 años ago | 3 downloads |

Submitted


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

más de 6 años ago | 3 downloads |

Submitted


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

casi 7 años ago | 49 downloads |

Submitted


Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP

casi 7 años ago | 36 downloads |

Submitted


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

casi 7 años ago | 84 downloads |

Submitted


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

más de 7 años ago | 41 downloads |

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nearestSPD
Finding the nearest positive definite matrix

más de 8 años ago | 35 downloads |

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

casi 9 años ago | 25 downloads |

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

casi 9 años ago | 18 downloads |

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

alrededor de 9 años ago | 26 downloads |

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interparc
Distance based interpolation along a general curve in space

más de 9 años ago | 86 downloads |

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

más de 9 años ago | 5 downloads |

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

más de 9 años ago | 121 downloads |

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

más de 9 años ago | 2 downloads |

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fminsearchbnd, fminsearchcon
Bound constrained optimization using fminsearch

casi 10 años ago | 186 downloads |

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

casi 10 años ago | 36 downloads |

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