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.
Statistics
62 Files
Cody HighlightsRANK
10
of 294.438
REPUTATION
21.605
CONTRIBUTIONS
15 Questions
7.684 Answers
ANSWER ACCEPTANCE
46.67%
VOTES RECEIVED
4.690
RANK
4 of 20.114
REPUTATION
65.400
AVERAGE RATING
4.80
CONTRIBUTIONS
62 Files
DOWNLOADS
1006
ALL TIME DOWNLOADS
589709
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
1 Highlight
AVERAGE NO. OF LIKES
8
Feeds
Submitted
randpoly
Generate N uniformly distributed points inside a supplied polygon (or polyshape)
meer dan een jaar ago | 2 downloads |
Submitted
allcrossings
Locate all intersections of a pair of functions f1 and f2, on a finite domain
meer dan een jaar ago | 1 download |
Submitted
num2bin
Expression of all numbers in a variety of binary forms.
bijna 2 jaar ago | 2 downloads |
Submitted
A limited set of basic number theoretic tools
Various tools for working with integers and their factors, primes, congruences, etc.
bijna 2 jaar ago | 3 downloads |
Submitted
minkowskiSum
Compute the Minkowski sum of any two polygons or polyshapes, convex or concave.
bijna 2 jaar ago | 4 downloads |
Submitted
randFixedLinearCombination
Uniform random samples over a n-dimensional hyper-rectangle, subject to a linear equality constraint
ongeveer 4 jaar ago | 3 downloads |
Submitted
Eigenshuffle
Consistently sorted eigenvalue and eigenvector sequences
meer dan 4 jaar ago | 18 downloads |
Submitted
Divisors of a number, perfect, amicable, and sociable number
Tools to work (and play) with the divisors of a number
meer dan 5 jaar ago | 1 download |
Submitted
HPF - a big decimal class
High precision floating point arithmetic, a new class written in MATLAB
meer dan 6 jaar ago | 20 downloads |
Submitted
Partitions of an integer
List all partitions of an integer
meer dan 6 jaar ago | 4 downloads |
Submitted
The permanent of any matrix (square or not)
The permanent of any matrix, square or not
meer dan 7 jaar ago | 3 downloads |
Submitted
SLM - Shape Language Modeling
Least squares spline modeling using shape primitives
meer dan 7 jaar ago | 60 downloads |
Submitted
The Fibonacci Sequence
Efficient computation of Fibonacci and Lucas numbers
meer dan 7 jaar ago | 1 download |
Submitted
base2base(Nstart,bstart,bend)
Numeric base conversion between any two numeric bases, for any size integer.
ongeveer 8 jaar ago | 2 downloads |
Submitted
Optimization Tips and Tricks
Tips and tricks for use of the optimization toolbox, linear and nonlinear regression.
meer dan 8 jaar ago | 13 downloads |
Submitted
movingstd & movingstd2
A (fast) windowed std on a time series (or array)
meer dan 8 jaar ago | 3 downloads |
Submitted
Surface Fitting using gridfit
Model 2-d surfaces from scattered data
meer dan 8 jaar ago | 75 downloads |
Submitted
Batched partitioned nonlinear least squares
Speed up when you have a very large number of nonlinear least squares problems, but with one model
meer dan 9 jaar ago | 2 downloads |
Submitted
export_search_path
Allows the user to transfer your search path from an old MATLAB release to a new release
meer dan 9 jaar ago | 3 downloads |
Submitted
Adaptive numerical limit (and residue) estimation
Numerical extrapolation of a limit (with an error estimate) from only function values
meer dan 9 jaar ago | 1 download |
Submitted
Variable Precision Integer Arithmetic
Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported.
meer dan 9 jaar ago | 32 downloads |
Submitted
Symbolic Polynomial Manipulation
Symbolic polynomial manipulation as an exercise in OOP
bijna 10 jaar ago | 21 downloads |
Submitted
Adaptive Robust Numerical Differentiation
Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian
bijna 10 jaar ago | 47 downloads |
Submitted
A suite of minimal bounding objects
Suite of tools to compute minimal bounding circles, rectangles, triangles, spheres, incircles, etc.
meer dan 10 jaar ago | 26 downloads |
Submitted
nearestSPD
Finding the nearest positive definite matrix
ongeveer 11 jaar ago | 27 downloads |
Submitted
distance2curve
Find the closest point on a (n-dimensional) curve to any given point or set of points
meer dan 11 jaar ago | 18 downloads |
Submitted
Inverse (integrated) gradient
Vectorized & fully sparse 1-d, 2-d, & 3-d integrated gradients
bijna 12 jaar ago | 6 downloads |
Submitted
Inhull
Efficient test for points inside a convex hull in n dimensions
ongeveer 12 jaar ago | 30 downloads |
Submitted
interparc
Distance based interpolation along a general curve in space
ongeveer 12 jaar ago | 39 downloads |