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Matlab code for Poisson Boltzmann equation

etwa ein Monat ago | 0

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Plotting a 3D contour graph
Example with interp2 load matlab.mat Z = fv_avg_condensed; [m,n] = size(Z); [X,Y] = meshgrid(1:n,1:m); [Xq,Yq] = meshgr...

etwa ein Monat ago | 0

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Simulation of tensile test
An example clc,clear % umaxa=163; umaxa=113; umaxb=167; n = 20; area=0.064; rng('shuffle') Umax=umaxa + (umaxb-umaxa)....

etwa 2 Monate ago | 0

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convert pattern image to sinusoidal wave
Convert image (rgb2gray) and sum rows

etwa 2 Monate ago | 0

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The differential equation problem with variable solution by using ode45
Here is an idea [t1,x1] = ode45(@F1,ts,x0); % solve second order [t2,s] = ode45(@(t,s)F2(t,s,t1,x1(:,1)...

etwa 2 Monate ago | 1

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How to visualize a tubular volume/surface passing through a given scalar data (points in 3D) forming a sequence of cross-sections
Here is one way: Interpolate each crossection with equal number of points (look HERE) Concantenate them and just use surf to...

etwa 2 Monate ago | 0

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Brake rotor simulation - Couldn't get results
I set up maxstep opt = odeset('MaxStep',0.1); [t,x] = ode45(@DerFun,Tspan,x0,opt); And now it looks like

etwa 2 Monate ago | 1

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How to create fade gif image OUT OF 6 IMAGES AS GIVEN IN PICTURE?
Read about gif animation in help Here is an idea: n = 5 % number of changes between images for...

etwa 2 Monate ago | 1

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How to find the circle/ contour of my shape and the distance from the outer contour to the center of the shape?
Binarize image (0 and 1) imdilate image Use edge Maybe bwareopen to clear a bit

etwa 2 Monate ago | 0

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Solution to nonlinear differential equation
Here is an attempt function bvp4c_mathworks solinit = bvpinit([-1 1],[0 0]); %[-inf, inf] replaces with [-1, 1] sol = ...

etwa 2 Monate ago | 0

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3D plotting of Excel Data
Use plot and pause to animate the movement plot3(x,y,z) hold on for i = 2:length(x)-1 ii = i-1:i+1; h = plot3(x(ii)...

etwa 2 Monate ago | 0

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How to plot the elements of a matrix with a specific coordinates and specified the region in matlab?
Maybe inpolygon n = 100; t = -linspace(0,2*pi,n)+pi/2; x = cos(t); y = sin(t); x0 = 0.5; % po...

etwa 2 Monate ago | 1

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Extract an elevation profile along at specific azimuth using improfiler
Here is simple scheme that should help You can find size of an image [m,n,k] = size(I); x1 = n/2; % half of ...

etwa 2 Monate ago | 0

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Plotting solution of equation
Experiment! d = 1e-3; % plate thickness [m] h = d/2; ct = 2.26 * 1e-3 / 1e-6; % transverse wave speed for aluminium[m/s] ome...

etwa 2 Monate ago | 0

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Draw a matrix image of blood vessel
Would it be helpfull? n = 10; dt = .1; [x, y, z] = deal( zeros(2,10) ); axis([-1 1 -1 1]*10) hold on k = 0; t = 360*(rand...

etwa 2 Monate ago | 0

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Plot a heatmap from a matix
You are using H for rows and W for columns M1 = zeros(H,W); % ... for i = 1 : W for j = 1 : H % ... M1...

etwa 2 Monate ago | 0

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Trying to graph a 3 variable probability function
Use isosurface to visualize [a,b,c] = meshgrid(0:0.1:2); f = 1./(3.5*a+2.5*b+3*c+1); cla hold on for fk = 0 :0.1:1 iso...

etwa 2 Monate ago | 0

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How to solve this two variable equation and save values?
Try for K = 0:100 roots([1 2 K 2]) end

etwa 2 Monate ago | 0

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Contour or mesh plot of irregular-spaced data
Use griddata to convert your vectors into matrices

etwa 2 Monate ago | 0

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Is this a Matlab bug? The use of Ctrl + A to select all
You can add bookmark to return to your line. Crtl+F2 and just F2 Please accept my answer give me a vote

etwa 2 Monate ago | 1

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Width of my plot
You can find intersection between data and perpendicular line You can rotate data and find intersection Use polyxpoly or int...

etwa 2 Monate ago | 0

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ODE coupled with classic equation
Try this E = @(t) E0*exp(-t^2/tau^2)*cos(w0*t); w = @(t) a/E(t)*exp(-b/E(t)); rho = @(t,rho) w(t)*(rho-rho0); [t,r] = ode45(...

etwa 2 Monate ago | 0

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Converting pixel coordinates to latitude and longitude in decimal degrees for a binary image.
You forgot about concantenating (cat) function A= geotiffread('ems_a&n_subset.tif'); A(A>=0.99500)=0; y = im2bw(A); r = re...

etwa 2 Monate ago | 0

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Remove single pixel width connecting lines between objects
Here is an idea: find large areas and merge them to remove walls I = imread('image.png'); I1 = im2bw(I); % I2 = bwmorph(~I1,'...

etwa 2 Monate ago | 0

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world or continental Maps on slice
Example A = imread('ngc6543a.jpg'); [m,n,~] = size(A); N = 100; % number of points for surface Z ...

etwa 2 Monate ago | 0

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Colouring Tetramesh - Element wise
Manipulate with faceVertexCData property if you want to assing some colors get(p) %% FaceVertexCData = [ (72 by 1) do...

etwa 2 Monate ago | 0

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How to draw ellipse and identify its center around numerous points with Lat and Lon ?
You can identify bigger axis of ellipse (and it's angle) using pdist2 or just find two furthermost points.

etwa 2 Monate ago | 0

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Connecting dots with straight line in a loop.
Just use plot function plot(x(index),y(index))

etwa 2 Monate ago | 0

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Using a loop and counter for parametric equations
Preallocate array before loop E = zeros(3-1+1,22-5+1,6-5+1); for %% E(H,T,h) = ... end

etwa 2 Monate ago | 0

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ode45 2nd order IVP **please help!!**
You are almost there! Yyou written function for ode45 but you didn't use it! function yprime = ex3_2ndorder(x,y) %name and dat...

etwa 2 Monate ago | 3

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