Community Profile

photo

darova


Last seen: environ un mois ago
1 453 total contributions since 2019

darova's Badges

  • Revival Level 2
  • Explorer
  • Thankful Level 4
  • First Review
  • 12 Month Streak
  • Guiding Light
  • Knowledgeable Level 4
  • First Answer
  • Solver

View details...

Contributions in
View by

Answered
Use a different colormap scale for different sections of a matrix
YOu can create your own color matrix [x,y,z] = peaks(30); ix = x.^2 + y.^2 < 2^2; c1 = z*0; c2 = z*0; c1(ix) = 1; c2(~ix) ...

environ un mois ago | 0

Answered
Medial axis extraction from a .STL file
An example [x,y,z] = cylinder(10); h = surf(x,y,z); p = surf2patch(h,'triangle'); p.facecolor = 'red'; stlwrite('test',p) ...

environ un mois ago | 0

Answered
Solving Population Balance Equation for multiple initial particle dimensions
First of all - timespan 0:1.2 is just [0 1] L=[1.2]; % Pipe Length ranges (m) [Z,N]=ode15s(...

environ un mois ago | 1

Answered
how to add titles row wise in the montage ?
What about text function? load mri montage(D, map) text(500,25,'TITLE 1','fontsize',30,'color','yellow','fontweight','bold') ...

environ un mois ago | 1

| accepted

Answered
Plot in 300 or 600 dpi
Use print x = 0:10; y = sin(x); plot(x,y); print('test','-dpng','-r300')

environ un mois ago | 1

| accepted

Answered
Plotting dates on the x-axis
Just use datenum a = rand(5,4,3); datenum(a(:,1),a(:,2),a(:,3)) Use sort if needed

environ un mois ago | 0

Answered
Solve an equation, for a variable, with prompts?
What about this? function main a = myprompt('Please enter a:'); b = myprompt('the same way b:'); function y = myprompt(s...

environ un mois ago | 0

Answered
Looping of more than one first order equations in in function file that can be updated for different value variable parameter
See this example f = @(t,x,a) [x(2); x(1)-a*sin(x(1))]; a = rand(10,1); % parameter cmap = jet(10); for i = 1:length(a)...

environ un mois ago | 0

| accepted

Answered
How do I print probability distribution object into textbox?
Here pd = makedist('Normal'); sig1 = pd.sigma mu1 = pd.mu

environ un mois ago | 1

Answered
solving equations with trigonometric functions
Here is the similar example. Maybe you will be interested , , and length are given. angle is changing Calculate length and...

environ un mois ago | 0

Answered
How to get back the values of a curve from its cumulative integral value?
Use diff to find real curve from cumulative trapezoid result

environ un mois ago | 0

| accepted

Answered
How to convert from surf to plot3 ?
Try meshgrid [X1,Y1] = meshgrid(X,Y); plot3(X1,Y1,Z1) line(X1',Y1',Z1')

environ un mois ago | 1

| accepted

Answered
How do I create variable vectors with a new value for each iteration of a loop?
Here are some corrections % yp=y0; % you are replacing variable yp with y0 yp(1) = y0; % you need to replace first valu...

environ un mois ago | 0

| accepted

Answered
Measure distance and angle of object
Here is the algorithm crop the region 1 and find min/max [m,n] = size(step1); [~,x1] = find(step1(:,1:n/2),1,'last'); [~,x2...

environ un mois ago | 0

| accepted

Answered
how to compute derivative
Only you know initial conditions. Imagine the situation: you are throwing the ball, initial conditions are velocity and angle. O...

environ un mois ago | 1

| accepted

Answered
Plotting Convergence Graph from Bisection Method
Try this while %condition % code line(iter,erorr,'marker','.') iter = iter + 1; end

environ un mois ago | 0

Answered
How to generate straight lines to 2D target points, each straight line is connected by 10 points which represent 10 steps from (0,0) to target point, for example (5,6)?
What about this x = rand(20,1); y = rand(20,1); line([x x*0]',[y y*0]')

environ un mois ago | 0

| accepted

Answered
How to detect a curve (surface roughness) from image?
binarize image first remove noise using bwareaopen use edge remove noise if needed using bwareaopen

environ un mois ago | 1

| accepted

Answered
Having trouble making a surface plot using data from Excel
Either use triangulation x = rand(20,1); y = rand(20,1); z = rand(20,1); dt = delaunay(x,y); trisurf(dt,x,y,z) Either gr...

environ un mois ago | 0

Answered
How can I use the subplot command to plot the root estimates vs iterations and the error vs iterations
Try this figure hold on while %condition % some code subplot(2,1,1) plot(iter,root) subplot(2,1,2) p...

environ un mois ago | 0

Answered
Integrating a function with one of the limits a matrix
Why don't just use for loop? integralCalculated = zeros(size(u)); for i = 1:length(u) integralCalculated(i) = integral(@(...

environ un mois ago | 0

| accepted

Answered
Evaluating polynomial functions to get integer as answer
solve can be used for simple problems. Use fsolve or vpasolve to get numerical results

environ un mois ago | 1

Answered
How to calculate area under each peak in plot from sampled data
Here is ax example x = 0:20; y = sin(x); [xc,yc] = polyxpoly(x,y,[0 20],[0 0]); % find '0' points intersections x1 = [x...

environ un mois ago | 0

Answered
Triangulation of a domain
Here is ax example of triangulation t = (0:90:270)+45; [x,y] = pol2cart(t*pi/180,1); gd = [2;length(x);x(:);y(:)]; % geomet...

environ un mois ago | 1

| accepted

Answered
empty figure for a given code
You forgot the dot (element-wise operator) You can simplify your code using for loop a0 = 1; for i = 1:5 a0 = ((a0*K-a...

environ un mois ago | 1

Answered
Filling in a spherical triangle
clc,clear t = [0; 45; 45]*pi/180; q = [45; 45; 90]*pi/180; [x,y,z] = sph2cart([t;t(1)],[q;q(1)],1); % convert angl...

environ un mois ago | 0

Answered
How to create custom color wheel for velocity data stored as RGB and only using R/G channels?
What about this? [R,G] = ndgrid(0:10:360,0:1); % polar coordinates [X,Y] = pol2cart(R*pi/180,G); % convefrt o cart...

environ un mois ago | 0

| accepted

Answered
i want to draw a streamline at 45 degree.
clc,clear [t,r] = ndgrid(0:5:45,0:10); % create mesh in polar coordinates [x,y] = pol2cart(t*pi/180,r); % con...

environ un mois ago | 0

| accepted

Answered
How to get all yellow piexels that interact with the blue piexels?
What about contour? [m,n] = size(data); [x,y] = meshgrid(1:m,1:n); [C,h] = contour(x,y,data,[0.9 0.9]); h1 = get(h,'children...

environ un mois ago | 0

Answered
Compute x and y by integrating the ODE system using Huen's method.
You should use for loop function [x,y] = odeHuen (f,x0,h,nSteps,y0) % Initialize the output solution arrays. m = length(y0);...

environ un mois ago | 0

Load more