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Date: Updated Submitted Time Frame: All Time Last 30 Days Last 7 Days			1 - 59 of 59
Date	File	Tags	Downloads (last 30 days)	Comments	Ratings
22 Nov 2009	binomfactors Returns a factored form for very large binomial coefficients Author: John D'Errico	vpi, nchoosek, factors, factor, binomial coefficient, binomial	125	0
22 Nov 2009	Variable Precision Integer Arithmetic Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported. Author: John D'Errico	toolbox, projecte, rabin, biginteger, mersenne, data type	191	29	4.66667 4.7 \| 17 ratings
29 Oct 2009	SLM - Shape Language Modeling Least squares spline modeling using shape primitives Author: John D'Errico	shape, modeling, interpolation, spline, splines, slm	326	11	5.0 5.0 \| 10 ratings
23 Jun 2009	insphere Inscribed sphere, entirely inside the facets of a 3-d convex hull Author: John D'Errico	circumsphere, convex hull, computational geometr..., sphere, insphere	107	1	5.0 5.0 \| 1 rating
17 Jun 2009	AB = kBA Solves the homogeneous linear system AB = kBA Author: John D'Errico	homogeneous, linear, riccati, system, linear algebra	147	4	3.0 3.0 \| 2 ratings
17 Jun 2009	incircle.m In-circle of a convex polygon, or of the convex hull of a set of points in two dimensions Author: John D'Errico	computational geometr..., incircle, convex hull, circle, polygon, inscribed circle	123	2	5.0 5.0 \| 2 ratings
14 May 2009	nextprime For any given number (also vpi numbers), find the next prime number in the sequence of primes. Author: John D'Errico	vpi, factor, next prime, numbers, number, primes	134	4	4.66667 4.7 \| 3 ratings
13 May 2009	The divisors of a number, perfect, amicable, and sociable numbers Tools to work (and play) with the divisors of a number Author: John D'Errico	proper divisors, divisors, factors, aliquot, numbers, perfect	100	2	5.0 5.0 \| 3 ratings
07 May 2009	Fibonacci and Lucas numbers A variety of methods are compared for the computation of Fibonacci and Lucas numbers Author: John D'Errico	fibonacci, vpi, memoization, recursion, numbers, lucas	146	0
01 May 2009	wreshape Reshape an array, padding/resizing if necessary to fill out the target size and shape of the array. Author: John D'Errico	array, reshape, numel, size, pad, vector	101	0
17 Apr 2009	Fminsearchcon Extension of fminsearchbnd for general inequality and linear inequality constraints Author: John D'Errico	nonlinear, bounds, optimization, inequality, constraints, bound	119	6	4.66667 4.7 \| 3 ratings
31 Mar 2009	Minimal radius bounding semi-circle Find that minimal radius bounding semi-circle that contains a set of points in the plane Author: John D'Errico	minimum, circle, area, computational geometr..., semicircle, radius	139	1	5.0 5.0 \| 1 rating
22 Mar 2009	Symbolic Polynomial Manipulation Symbolic polynomial manipulation as an exercise in OOP Author: John D'Errico	symbolic polynomials, manipulation, expression, symbolic math, mathematics	156	2	4.8 4.8 \| 5 ratings
18 Feb 2009	Eigenshuffle Consistently sorted eigenvalue and eigenvector sequences Author: John D'Errico	eig, shuffle, eigenvalues, sequence, eigenvectors, sort	116	12	4.42857 4.4 \| 9 ratings
16 Feb 2009	MIN2, MAX2 Global min or max value of a 2-d array, the search may be limited to specified rows or columns Author: John D'Errico	minimum, maximum, max, array, min, element	112	6	4.0 4.0 \| 5 ratings
06 Feb 2009	Circulant matrix The circulant matrix generated from a vector as the first row (or first column) Author: John D'Errico	matrix, hankel, linear algebra, circulant, toeplitz, circul	146	10	5.0 5.0 \| 3 ratings
13 Jan 2009	Automatic Numerical Differentiation Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian Author: John D'Errico	multivariable, numerical, multivariate, differentiation, derivative	283	18	4.6 4.6 \| 10 ratings
25 Aug 2008	Inpainting nan elements in 3-d An extension of inpaint_nans to 3 dimensions Author: John D'Errico	interpolation, nans, replace, extrapolation, inpainting, approximation	129	3	5.0 5.0 \| 3 ratings
16 Jul 2008	Partitions of an integer List all partitions of an integer Author: John D'Errico	integer partitions, partition, money changing, function	134	5	5.0 5.0 \| 6 ratings
01 Jul 2008	uniqueperms List of all unique permutations of a vector with (possibly) replicated elements Author: John D'Errico	unique, perms, replicates, mathematics	129	4	5.0 5.0 \| 2 ratings
23 Jun 2008	Fminspleas Efficient nonlinear regression fitting using a constrained, partitioned least squares overlay to fmi Author: John D'Errico	nonlinear least squar..., optimization, partitioned, fit, curve, fminsearch	235	3	5.0 5.0 \| 1 rating
29 May 2008	Adaptive numerical limit estimation Numerical extrapolation of a limit (with an error estimate) from only function values Author: John D'Errico	asymptote, pole, complex, residue, adaptive, derivative	135	4	4.0 4.0 \| 4 ratings
21 Apr 2008	IPDM: Inter-Point Distance Matrix An efficient and accurate Inter-Point Distance Matrix Author: John D'Errico	nearest neighbor, euclidean, distance, interpoint, metric	157	6	4.0 4.0 \| 3 ratings
31 Mar 2008	Moving window standard deviation A (fast) windowed std on a time series Author: John D'Errico	windowed running std ..., dsp	169	5	4.85714 4.9 \| 7 ratings
20 Mar 2008	Polyfitn N-d polynomial regression model Author: John D'Errico	surface, linear regression, polynomial, fit, modeling, interpolation	268	32	4.52632 4.5 \| 21 ratings
21 Feb 2008	mgrep Returns the names of all m-files in a directory or directory tree that contain a search string. Author: John D'Errico	directories, path, grep mfiles search co..., files	144	4	4.5 4.5 \| 2 ratings
06 Feb 2008	spheresegmentvolume Volume of a (hyper)sphere, sphere cap, or any band through a sphere defined by two parallel planes Author: John D'Errico	integral, hypersphere, computational geometr..., sphere cap, sphere, segment	134	12	5.0 5.0 \| 2 ratings
14 Dec 2007	(Block) tri-diagonal matrices Generate (block) tridiagonal matrices Author: John D'Errico	block tridiagonal mat..., matrices	163	7	5.0 5.0 \| 8 ratings
10 Dec 2007	Estimatenoise Noise variance estimation from a signal vector or array Author: John D'Errico	noise, smoothing, variance, dsp, curve	191	8	5.0 5.0 \| 8 ratings
26 Nov 2007	loopchoose A looped version of nchoosek Author: John D'Errico	nchoosek, combinations, mathematics, general	140	3	5.0 5.0 \| 3 ratings
23 Oct 2007	Movingslope Sliding window regression to compute slope estimates along a curve Author: John D'Errico	slope, moving average, sav, filter, noise, differentiation	174	1	5.0 5.0 \| 1 rating
19 Sep 2007	LSE A linear least squares solver, subject to linear equality constraints Author: John D'Errico	regression, least, squares, linear, linear algebra, constraints	180	4	5.0 5.0 \| 3 ratings
10 Sep 2007	Consolidator Consolidates common elements in x (may be n-dimensional), aggregating corresponding y. Author: John D'Errico	consolidates, elements, delaunay, unique, matrices, replicates	157	16	5.0 5.0 \| 12 ratings
30 Jul 2007	Minimal Bounding Rectangle Minimal bounding rectangle around points in the (x,y) plane Author: John D'Errico	minimum, area, computational geometr..., rectangle, bounding, perimeter	210	5	4.5 4.5 \| 3 ratings
11 Jul 2007	Minimum Radius Bounding Circle Minimum radius bounding circle around a planar set of points Author: John D'Errico	enclose, circle, minimum, optimum, radius, enclosing	160	8	4.85714 4.9 \| 7 ratings
25 Apr 2007	Minboolspan Find a minimal subset of columns that "spans" the columns of a boolean matrix Author: John D'Errico	matrices, spanning covering min...	118	1	5.0 5.0 \| 1 rating
19 Mar 2007	Minimum area bounding triangle Triangle of minimal area that encloses data in the (x,y) plane Author: John D'Errico	triangle, minimum, area, enclosing, bounding, minimal	127	1	5.0 5.0 \| 1 rating
06 Mar 2007	RMSEARCH Randomly multiply started optimizations for global problems Author: John D'Errico	starting values, optimization, random, multistart, multiple start	100	4	5.0 5.0 \| 3 ratings
02 Mar 2007	Incremental growth of an array, revisited Efficient dynamic growth of an array by concatenation. Author: John D'Errico	cat, matrix manipulation, matrices, horzcat, utilities, vertcat	136	0
20 Feb 2007	Graphical data selection tool A graphical tool to modify your plots and locate data points Author: John D'Errico	delete, data select, graphics, remove, selection, data exploration	153	11	5.0 5.0 \| 14 ratings
24 Jan 2007	Minimum Radius Bounding Sphere Minimum radius bounding sphere around a 3d set of points Author: John D'Errico	enclose, minimum, sphere, optimum, radius, enclosing	219	11	3.8 3.8 \| 7 ratings
07 Dec 2006	Optimization Tips and Tricks Tips and tricks for use of the optimization toolbox, linear and nonlinear regression. Author: John D'Errico	nonlinear regression ..., linear regression, optimization	382	34	4.71429 4.7 \| 37 ratings
30 Oct 2006	Inhull Efficient test for points inside a convex hull in n dimensions Author: John D'Errico	computational geometr..., tsearch, convex hull, convhulln, hull, interior	164	15	4.38462 4.4 \| 14 ratings
28 Sep 2006	fminsearchbnd Bound constrained optimization using fminsearch. Author: John D'Errico	unconstrained, transformation, optimization, bound constraints, problem, fminsearch	224	28	4.96429 5.0 \| 28 ratings
20 Sep 2006	Color name identification: fuzzycolor Efficient identification of color names for any RGB Author: John D'Errico	color name names iden..., color	149	5	3.0 3.0 \| 2 ratings
22 Aug 2006	Surface Fitting using gridfit Model 2-d surfaces from scattered data Author: John D'Errico	2d surfaces, surface, surface fitting, modeling, regression, interpolation	428	46	4.87755 4.9 \| 49 ratings
28 Jun 2006	inpaint_nans Interpolates (& extrapolates) NaN elements in a 2d array. Author: John D'Errico	extrapolates, approximation, inpaint, file exchange select, interpolation, triangulation	182	27	4.87097 4.9 \| 32 ratings
22 Jun 2006	Nonlinear Regression Shapes Curve fitting, empirical modeling, and an appreciation of shape Author: John D'Errico	modeling, shape, fitting, empirical, nonlinear regression, optimization	106	3	5.0 5.0 \| 2 ratings
03 May 2006	Fermat-like tuples Searches for Fermat-like tuples: x1^n + x2^n + ... + xp^n = z^m Author: John D'Errico	fermats last theorem ...	126	0
17 Apr 2006	Unitize Scales columns/rows of an array to have unit norm Author: John D'Errico	normalize vectors uni..., matrices	129	0	5.0 5.0 \| 1 rating
10 Apr 2006	Piecewise functions Evaluate a general piecewise function of one variable Author: John D'Errico	piecewise, variable, functions, specify	304	13	4.22222 4.2 \| 10 ratings
28 Mar 2006	Interpne Extension of interpn to allow extrapolation Author: John D'Errico	multidimensional, extrapolation, trilinear, t, bilinear, approximation	180	0
13 Mar 2006	Tessquad n-d Gaussian quadrature over a tessellated domain or scattered data Author: John D'Errico	integration, quadrature, mathematics, tessellation	100	3	5.0 5.0 \| 1 rating
27 Jan 2006	Inverse (integrated) gradient Vectorized & fully sparse 1-d, 2-d, & 3-d integrated gradients Author: John D'Errico	gradient inverse inte..., 1d, integration, methods, arrays, gradient	129	3	5.0 5.0 \| 3 ratings
16 Jan 2006	parse_pv_pairs Parsing property/value pairs for function input. Author: John D'Errico	argument, pairs, namevalue, propertyvalue	161	2	5.0 5.0 \| 2 ratings
14 Oct 2005	Unround Unrounds points on a curve to produce the smoothest curve which is consistent with rounding. Author: John D'Errico	shapers, interpolation, lookup table, rounding, image processing, approximation	120	0
22 Apr 2005	Incremental Growth of an Array Efficient growth of an array using concatenation. Author: John D'Errico	concatenation, efficient, matrix manipulation, matrices, array, growth	145	2
12 Nov 1999	bindex.m BINDEX solves the binning problem. Author: John D'Errico	interpolation, index, bindex, binning, real line, points	142	6	4.75 4.8 \| 4 ratings
20 Nov 1998	Morel (Bridge Helper) Morel allows the user to generate random bridge hands following any given hand type, etc. Author: John D'Errico	morel, bridge, helper, games, game	117	0
1 - 59 of 59
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