Stephan
Knowledge means knowing where it is written...
Interested in:
- Optimization
- Mathematical Modelling
- Improvement of my programming skills
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Contribute at least one answer each month for 36 consecutive months
Awarded to Stephan on 02 Apr 2021
Obtain 50 solvers for a problem you have created
Awarded to Stephan on 11 Dec 2020
Solve all the problems in Introduction to MATLAB problem group
Awarded to Stephan on 28 Jan 2019
Your submissions were downloaded 10 or more times in a month
Awarded to Stephan on 01 Nov 2019
Publish your first review
Awarded to Stephan on 09 Oct 2019
Publish your first submission
Awarded to Stephan on 09 Oct 2019
Accept 5 answers given by other contributors
Awarded to Stephan on 11 Oct 2018
100 of your answers have been accepted
Awarded to Stephan on 04 Sep 2018
Answer 10 questions that were unanswered for more than 30 days
Awarded to Stephan on 22 Jun 2018
Be the first to solve a problem
Awarded to Stephan on 24 Apr 2018
Create a problem
Awarded to Stephan on 24 Apr 2018
Content Feed
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.
4달 전 | 0
MaxFunctionEvaluations not working in optimset() for fsolve()
See the documentation:
4달 전 | 1
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Generation of a pair of random numbers satisfying a constraint
N = 10; r = sort(rand(N,2),2)
4달 전 | 0
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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...
4달 전 | 0
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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
4달 전 | 0
functions within the script
a1=myfunction(5) a2=myfunction(7) function a=myfunction(r) a=10*r end
4달 전 | 1
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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...
4달 전 | 0
How to solve simulatenous coupled non linear differential equation
https://de.mathworks.com/help/matlab/examples.html?category=ordinary-differential-equations
4달 전 | 0
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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
4달 전 | 0
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Creation of a black and white image
image=zeros(512,512); image(206:305,206:305)=255; imshow(image)
4달 전 | 0
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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...
4달 전 | 0
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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)
4달 전 | 0
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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 ...
4달 전 | 0
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I am unable to find pv array in 2014b please help me to find it.
PV Array was introduced with R2015a - you can not find it in R2014b - see the link. Are you sure your friends version is 2014a? ...
4달 전 | 0
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...
5달 전 | 0
How to plot parametric curve
https://de.mathworks.com/help/matlab/ref/fplot.html#bu6xntl-12
5달 전 | 0
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. ...
5달 전 | 0
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...
5달 전 | 0
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...
5달 전 | 0
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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)
5달 전 | 0
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))
5달 전 | 0
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)
5달 전 | 1
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...
5달 전 | 0
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...
5달 전 | 1
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Audioread Function Error.
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 ...
5달 전 | 0
How to set Assumptions for function handle?
See fimplicit3 example here and use interval argument: f = @(x,y,z)x.^2+y.^2+z.^2-1; fimplicit3(f, [-1, 1, -1, 1, 0, 1])
5달 전 | 0
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Loop function takes too long. How can I reduce the processing time?
Yes, diff in as inbuilt and vectrorized function to get what you want. Run this command on a vector input will give you all the ...
5달 전 | 0
