John D'Errico
Retired
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.
統計
1 of your answers has been picked for excellence by MATLAB Answers Editors
Awarded to John D'Errico on 17 Mar 2023
Answer 50 questions that were unanswered for more than 30 days
Awarded to John D'Errico on 15 Nov 2020
Obtain 50 solvers for a problem you have created
Awarded to John D'Errico on 10 Sep 2020
Like a problem or solution
Awarded to John D'Errico on 13 Oct 2016
Top ten contributors with the most downloaded submissions in 2022
Awarded to John D'Errico on 03 Jan 2023
Top ten contributors with the most downloaded submissions in 2021
Awarded to John D'Errico on 06 Jan 2022
Top ten contributors with the most downloaded submissions in 2020
Awarded to John D'Errico on 04 Jan 2021
Top ten contributors with the most downloaded submissions in 2019
Awarded to John D'Errico on 02 Jan 2020
Your submissions were downloaded 1000 or more times in a month
Awarded to John D'Errico on 01 Nov 2019
Your submission is selected as "Pick of The Week"
Awarded to John D'Errico on 09 Oct 2019
Publish your first review
Awarded to John D'Errico on 09 Oct 2019
Your submissions received 25 five star ratings
Awarded to John D'Errico on 09 Oct 2019
Content Feed
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randpoly
Generate N uniformly distributed points inside a supplied polygon (or polyshape)
7ヶ月 前 | ダウンロード 1 件 |
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allcrossings
Locate all intersections of a pair of functions f1 and f2, on a finite domain
7ヶ月 前 | ダウンロード 0 件 |
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A limited set of basic number theoretic tools
Various tools for working with integers and their factors, primes, congruences, etc.
9ヶ月 前 | ダウンロード 1 件 |
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minkowskiSum
Compute the Minkowski sum of any two polygons or polyshapes, convex or concave.
10ヶ月 前 | ダウンロード 5 件 |
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randFixedLinearCombination
Uniform random samples over a n-dimensional hyper-rectangle, subject to a linear equality constraint
約3年 前 | ダウンロード 3 件 |
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Divisors of a number, perfect, amicable, and sociable number
Tools to work (and play) with the divisors of a number
4年以上 前 | ダウンロード 1 件 |
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HPF - a big decimal class
High precision floating point arithmetic, a new class written in MATLAB
5年以上 前 | ダウンロード 35 件 |
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The permanent of any matrix (square or not)
The permanent of any matrix, square or not
6年以上 前 | ダウンロード 1 件 |
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SLM - Shape Language Modeling
Least squares spline modeling using shape primitives
6年以上 前 | ダウンロード 56 件 |
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The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers
6年以上 前 | ダウンロード 4 件 |
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base2base(Nstart,bstart,bend)
Numeric base conversion between any two numeric bases, for any size integer.
約7年 前 | ダウンロード 2 件 |
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Optimization Tips and Tricks
Tips and tricks for use of the optimization toolbox, linear and nonlinear regression.
7年以上 前 | ダウンロード 24 件 |
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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
8年以上 前 | ダウンロード 2 件 |
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export_search_path
Allows the user to transfer your search path from an old MATLAB release to a new release
8年以上 前 | ダウンロード 2 件 |
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Adaptive numerical limit (and residue) estimation
Numerical extrapolation of a limit (with an error estimate) from only function values
8年以上 前 | ダウンロード 1 件 |
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Variable Precision Integer Arithmetic
Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported.
8年以上 前 | ダウンロード 72 件 |
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Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP
9年弱 前 | ダウンロード 17 件 |
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Adaptive Robust Numerical Differentiation
Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian
9年弱 前 | ダウンロード 47 件 |
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A suite of minimal bounding objects
Suite of tools to compute minimal bounding circles, rectangles, triangles, spheres, incircles, etc.
9年以上 前 | ダウンロード 25 件 |
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distance2curve
Find the closest point on a (n-dimensional) curve to any given point or set of points
10年以上 前 | ダウンロード 15 件 |
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Inverse (integrated) gradient
Vectorized & fully sparse 1-d, 2-d, & 3-d integrated gradients
10年以上 前 | ダウンロード 5 件 |
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