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.
Estadística
15 Preguntas
7.745 Respuestas
62 Archivos
Cody5 Problemas
140 Soluciones
CLASIFICACIÓN
10
of 296.109
REPUTACIÓN
21.763
CONTRIBUCIONES
15 Preguntas
7.745 Respuestas
ACEPTACIÓN DE RESPUESTAS
46.67%
VOTOS RECIBIDOS
4.730
CLASIFICACIÓN
4 of 20.339
REPUTACIÓN
65.672
EVALUACIÓN MEDIA
4.80
CONTRIBUCIONES
62 Archivos
DESCARGAS
1129
ALL TIME DESCARGAS
592429
CLASIFICACIÓN
1.624
of 155.365
CONTRIBUCIONES
5 Problemas
140 Soluciones
PUNTUACIÓN
1.566
NÚMERO DE INSIGNIAS
7
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
1 Tema destacado
MEDIA DE ME GUSTA
8
Top ten contributors whose answers received the most acceptances in 2023
Awarded to John D'Errico on 01 Jan 2024
1 of your answers has been picked for excellence by MATLAB Answers Editors
Awarded to John D'Errico on 17 Mar 2023
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 2023
Awarded to John D'Errico on 19 Jan 2024
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
Answer 50 questions that were unanswered for more than 30 days
Awarded to John D'Errico on 15 Nov 2020
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
Feeds
Enviada
randpoly
Generate N uniformly distributed points inside a supplied polygon (or polyshape)
casi 2 años hace | 2 descargas |
Enviada
allcrossings
Locate all intersections of a pair of functions f1 and f2, on a finite domain
casi 2 años hace | 1 descarga |
Enviada
num2bin
Expression of all numbers in a variety of binary forms.
casi 2 años hace | 1 descarga |
Enviada
A limited set of basic number theoretic tools
Various tools for working with integers and their factors, primes, congruences, etc.
casi 2 años hace | 3 descargas |
Enviada
minkowskiSum
Compute the Minkowski sum of any two polygons or polyshapes, convex or concave.
alrededor de 2 años hace | 9 descargas |
Enviada
randFixedLinearCombination
Uniform random samples over a n-dimensional hyper-rectangle, subject to a linear equality constraint
más de 4 años hace | 3 descargas |
Enviada
Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences
más de 4 años hace | 17 descargas |
Enviada
Divisors of a number, perfect, amicable, and sociable number
Tools to work (and play) with the divisors of a number
casi 6 años hace | 1 descarga |
Enviada
HPF - a big decimal class
High precision floating point arithmetic, a new class written in MATLAB
casi 7 años hace | 24 descargas |
Enviada
The permanent of any matrix (square or not)
The permanent of any matrix, square or not
más de 7 años hace | 3 descargas |
Enviada
SLM - Shape Language Modeling
Least squares spline modeling using shape primitives
más de 7 años hace | 62 descargas |
Enviada
The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers
casi 8 años hace | 1 descarga |
Enviada
base2base(Nstart,bstart,bend)
Numeric base conversion between any two numeric bases, for any size integer.
más de 8 años hace | 5 descargas |
Enviada
Optimization Tips and Tricks
Tips and tricks for use of the optimization toolbox, linear and nonlinear regression.
más de 8 años hace | 6 descargas |
Enviada
movingstd & movingstd2
A (fast) windowed std on a time series (or array)
más de 8 años hace | 4 descargas |
Enviada
Surface Fitting using gridfit
Model 2-d surfaces from scattered data
casi 9 años hace | 68 descargas |
Enviada
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 9 años hace | 2 descargas |
Enviada
export_search_path
Allows the user to transfer your search path from an old MATLAB release to a new release
casi 10 años hace | 1 descarga |
Enviada
Adaptive numerical limit (and residue) estimation
Numerical extrapolation of a limit (with an error estimate) from only function values
casi 10 años hace | 1 descarga |
Enviada
Variable Precision Integer Arithmetic
Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported.
casi 10 años hace | 43 descargas |
Enviada
Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP
alrededor de 10 años hace | 19 descargas |
Enviada
Adaptive Robust Numerical Differentiation
Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian
alrededor de 10 años hace | 45 descargas |
Enviada
A suite of minimal bounding objects
Suite of tools to compute minimal bounding circles, rectangles, triangles, spheres, incircles, etc.
más de 10 años hace | 29 descargas |
Enviada
nearestSPD
Finding the nearest positive definite matrix
más de 11 años hace | 27 descargas |
Enviada
distance2curve
Find the closest point on a (n-dimensional) curve to any given point or set of points
casi 12 años hace | 16 descargas |
Enviada
Inverse (integrated) gradient
Vectorized & fully sparse 1-d, 2-d, & 3-d integrated gradients
casi 12 años hace | 9 descargas |
Enviada
Inhull
Efficient test for points inside a convex hull in n dimensions
más de 12 años hace | 34 descargas |
Enviada
interparc
Distance based interpolation along a general curve in space
más de 12 años hace | 27 descargas |
También puede seleccionar uno de estos países/idiomas:
América
- América Latina (Español)
- Canada (English)
- United States (English)
Europa
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom(English)
Asia-Pacífico
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)