Community Profile # Stephan

Last seen: 20 dagar ago Active since 2017

Knowledge means knowing where it is written...

Interested in:
- Optimization
- Mathematical Modelling
- Improvement of my programming skills

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Automatically fit a circle on an arc in image and to plot the circle in the image.
This example from the documentation appears to be suitable for your case.

MaxFunctionEvaluations not working in optimset() for fsolve()
See the documentation:

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Generation of a pair of random numbers satisfying a constraint
N = 10; r = sort(rand(N,2),2)

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Dimensions of arrays being concatenated are not consistent.
clc; clear all; close all; %% Parametri %% Inercija; {kg.m2} Juc = 2.6e-2; Jlc = 1e-3; %% Kruto...

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How can I vectorize the fun in Matlab with single code
Possible, but not recommended: https://de.mathworks.com/help/matlab/ref/vectorize.html

functions within the script
a1=myfunction(5) a2=myfunction(7) function a=myfunction(r) a=10*r end

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can i pleas be helped on the following code i dnt understand the outpu
A=[2 4 10 13;16 3 7 18;8 4 9 25;3 12 15 17] A(4:8) You need to understand linear indexing in Matlab: https://de.mathworks.com...

How to solve simulatenous coupled non linear differential equation
https://de.mathworks.com/help/matlab/examples.html?category=ordinary-differential-equations

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Failure in initial objective function evaluation when I'm solving a linear programming.
Use: function z= myobj01(x) z= -3*x(1)-4*x(2); end

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Creation of a black and white image
image=zeros(512,512); image(206:305,206:305)=255; imshow(image)

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From symbolic to numerical results for quadratic equation
You could use symbolic functions: syms y(a,b,x) y(a,b,x) = a*x^2 - b*x % Calculate values for a=1, b=2 and x in a range from...

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Create an equally spaced vector when taking the sine of another vector
p_inv = linspace(-1,1,25); theta = asin(p_inv); p = sin(theta); diff(p) % Is p equally spaced? scatter(p,theta)

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Comparing 2 frames from video
Try: function [P,MSE]=Untitled(original_img,stego_img) original_img=double(original_img); stego_img=double(stego_img); if ...

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PV Array was introduced with R2015a - you can not find it in R2014b - see the link. Are you sure your friends version is 2014a? ...

HOW TO SOLVE 2 EQUATION ODE USING ODE45 IN MATLAB?
f = @(t,y) [0.303*y(1)-0.557*y(1).^2+0.260*y(2).*y(1);... 0.0345*y(2)-1.18e-7*y(2).^2+3.55e-14*y(1).*y(2)]; Y0 = [0.0718,0...

How to plot parametric curve
https://de.mathworks.com/help/matlab/ref/fplot.html#bu6xntl-12

Get mean and stdev from all values
Use a table and then use findgroups combined with splitappy. This will allow you to solve the problem with a few lines of code. ...

Vectors must be the same length.
Change line 1: t=linspace(0,1,256); fc=60; fm=15; ac=1; am=1; wc=2*pi*fc; wm=2*pi*fm; mt=am*cos(wm*t); m_ac=ac*cos(wc...

hello everyone. How to divide a group of points named data into two parts, dataA and dataB, as shown in the figure. Thank you very much.
% divide data idx = clusterdata(data,2); dataA = data(idx==2,:); dataB = data(idx==1,:); % plot results scatter(dataA(:,1...

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element wise operation column matrix
Temp_data= [20;27;29;33;40] Case_1 = Temp_data - Temp_data(1) Case_2 = diff(Temp_data)

Return the number of rows of an array
A = [10 20 30 40 50 60 70 80 90 100] B = A(A<50)

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Getting wrong sine wave for frequency 10KHz
Think about your sampling rate: f = 10000; t = 0:1/(25*f):0.002; plot(t,sin(2*pi*f.*t))

split matrix into two based on column values
A = [ 1 2 1.4; 1 3 1.4; 2 5 1.4; 1 5 81; 3 4 1.4; 5 4 81] A1 = A(A(:,end)>80,:) A2 = A(A(:,end)<=80,:)

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How to change the direction of x axis.
A = imread('ngc6543a.jpg'); imshow(A) B = fliplr(A); imshow(B)

Why can't a circle be detected in such an obvious image?
Use a range for radius input argument such as: [centers1,radii1] = imfindcircles(img,[50 200],'Sensitivity',0.85,'ObjectPolarit...

Help with solving a system of equations
Please check carefully if this is correct and if it is what you need: %% Case 1: N = 19 % clc % clear % b = 6; % Vinf = 1...

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How to calculate NDI Index
NDI_new = uint8(rescale(NDI, 0, 255));

Re-Install your Matlab version if you are not able to undelete the file. There is no other legal way to help you, because it is ...