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updated 12 days ago

Add a background gradient to plots by Michelle Hirsch

Michelle Hirsch

Add a background gradient to plot axes to make them look a little fancy. (graphics, utility, gradient)

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updated 27 days ago

The calculation of the gradient by shayan raei

shayan raei

Corona has caused the loss of electrical power transmission lines will also reduce efficiency. (conductor surface gra..., gradient, transmission lines)

cal(ii)

q_cal(p)

main.m

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updated 1 month ago

Multi-exposure and Multi-focus Image Fusion in Gradient Domain by Sujoy Paul

Sujoy Paul

An algorithm for fusion of a stack of multi-exposure and multi-focus images (image processing, image fusion, multiexposure)

ReconstructGradient.m

ChannelNorm(I,r)

GradientFusion(I)

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updated 1 month ago

Color Palette Tables (.cpt) for Matlab by Kelly Kearney

Kelly Kearney

Create and apply GMT-style colormaps in Matlab (color, gradient, r2014b graphics ready)

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updated 1 month ago

Adaptive Robust Numerical Differentiation by John D'Errico

John D'Errico

Numerical derivative of an analytically supplied function, also gradient, Jacobian & Hessian (hessian, jacobian, toolbox)

derivest_demo

multivariable_calc_demo

derivest(fun,x0,varargin)

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updated 1 month ago

Radial Basis Function Network by Travis Wiens

Travis Wiens

Simulates and trains Gaussian and polyharmonic spline radial basis function networks. (radial basis function, rbf for suren, radial basis function...)

rbf_integral(Xc,X1,X2,k_i,basisfunction)

rbfn_integral(Xc,X1,X2,W,k_i,basisfunction)

sim_rbf(Xc,X,W,k_i,basisfunction)

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updated 3 months ago

Symbolic Derivatives for Econometric Tests by Alan Weiss

Alan Weiss

How to calculate derivatives required by Econometric Toolbox tests via Symbolic Math Toolbox (symbolic, econometrics, jacobian)

symbolic_econometric_tests.m

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updated 4 months ago

Wavelet based Image Reconstruction from Gradient Data by E

E

A toolbox for reconstructing images from gradient data. (image processing, gradient, poisson solver)

Reflect.m

Ad_GWN(X,targetSNR,st)

CombineRGB(R,G,B)

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updated 11 months ago

MeasureClick - measure between two clicks quickly by Matthew Arthington

Matthew Arthington

Quickly display the distance and gradient between two clicks (plot, figure, dialogue box)

measureClick(varargin)

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updated 1 year ago

circular diff by Petorr

Petorr

diff with wrap-around differences, same sized output matrix (diff, circular, difference)

difc(varargin)

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updated 1 year ago

FUNC2MAT: Convert linear function to matrix by Matt J

Matt J

A utility to obtain the matrix representing a given linear function (linear function, matrix form, gradient)

A=func2mat(fun,Xtypical,varargin)

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updated 1 year ago

diffe by Marco Borges

Marco Borges

euclidian differentiation (diff, differential equation..., gradient)

diffe(x,range)

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updated 1 year ago

Computing Electric field of a double dipole by solving Poisson's Equation by Praveen Ranganath

Praveen Ranganath

This code computes the E-fields due to 2-dipoles in a 2-D plane using Finite difference method. (aerospace, cartesian coordinates, dipole)

Poisson2d_dipole.m

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updated almost 2 years ago

TRIGRADIENT.M by Mick Warehime

Mick Warehime

Fast approximation to the gradient for scattered data and for data defined by a triangulation. (triangulation, gradient, delaunay)

trigradient(x,y,z,t,opt)

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updated 2 years ago

Inverse (integrated) gradient by John D'Errico

John D'Errico

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

consolidator(x,y,aggregation_mode,tol)

intgrad1(fx,dx,f1,method)

intgrad2(fx,fy,dx,dy,f11)

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updated 2 years ago

Files for the 2012 Webinar "Tips and Tricks - Getting Started Using Optimization with MATLAB" by Seth DeLand

Seth DeLand

These are the files that were used for the demonstrations in the webinar. (optimization, global optimization, fmincon)

RunThermistorExample()

ThOptimPlotCircuit(options,state,flag,Tdata,VData,Res,ThV...

VEMap(x)

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updated 2 years ago

Conditionally Colored Plot (CCPLOT) by Michael Heidingsfeld

Michael Heidingsfeld

Plots conditionally colored (2D line) graphs. (plot, visualization, color)

ccplot(x,y,c,map)

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updated 4 years ago

DGradient by Jan Simon

Jan Simon

Gradient of arrays as fast C-Mex (derivative, gradient, array)

DGradient(X, Dim, Spacing, Method)

uTest_DGradient(doSpeed)

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updated 4 years ago

Detect circles with various radii in grayscale image via Hough Transform by Tao Peng

Tao Peng

Detect circular shapes in a grayscale image. Resolve their center positions and radii. (image analysis, circular hough transf..., various)

CircularHough_Grd(img, radrange, varargin)

DrawCircle(x, y, r, nseg, S)

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updated 4 years ago

diffxy by Darren Rowland

Darren Rowland

Second-order accurate numerical differentiation (N-dimensional) (derivative, differentiation, gradient)

demo_diffxy

diffxy(x,y,varargin)

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updated 4 years ago

Gradient from Neural Network by Alan Jennings

Alan Jennings

Function that takes a NN and creates a new NN that gives the gradient. (neural networks, function, gradient)

NN_DerivativeValidate

NN_GradientFunction(net)

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updated 4 years ago

Derivative-based Optimization by Nassim Khaled

Nassim Khaled

Derivative-based Optimization using The Gradient Descent (gradient, descent, minimum)

Gradient_Descent_maximum.m

Gradient_Descent_minimum.m

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updated 5 years ago

der.m v1.0 (Nov, 2009) by Carlos Adrian Vargas Aguilera

Carlos Adrian Vargas Aguilera

Estimates first derivative of an array by using POLYFIT locally on each point ignoring NaNs! (diff, gradient, derivative)

der(X,DT,W,DEG,PAD,DIM)

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updated 5 years ago

nanderivative.m v2.1 (Jul 2009) by Carlos Adrian Vargas Aguilera

Carlos Adrian Vargas Aguilera

N-order derivative of vector data by interpolating nearby points, ignoring NaNs. (approximation, interpolation, diff)

nanderivative(Y,X,N,K,MET)

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updated almost 6 years ago

convexchecker by Bapi Chatterjee

Bapi Chatterjee

It checks real valued multidimensional function, whether it is convex. (optimization, finance, convex)

convexchecker.m

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updated almost 7 years ago

gradient8 by Wolfgang Schwanghart

Wolfgang Schwanghart

8-connected neighborhood gradient and aspect of a digital elevation model (gradient, aspect, exposition)

gradient8(DEM,res)

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updated 12 years ago

Iterative Methods for Linear and Nonlinear Equations by C.T. Kelley

C.T. Kelley

Companion Software (mathematics, iterative methods, linear)

...

...

...

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updated 13 years ago

central_diff.m by Robert Canfield

Robert Canfield

Calculates a numeric gradient using second-order central difference formula (approximation, interpolation, central)

central_diff( F, x )

central_diff_test.m

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updated 14 years ago

cpcg.m by Leevan Ling

Leevan Ling

CPCG -CIRCULANT PRECONDITIONED CONJUGATE GRADIENT METHOD. (linear algebra, circulant, preconditioned)

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