matlab meshgrid

The MATLAB function meshgrid is used to create a two-dimensional grid of points. It takes two vectors representing the x and y coordinates and returns two matrices that contain all possible combinations of the x and y values.

Syntax:

[X,Y] = meshgrid(x,y)

where x and y are vectors representing the x and y coordinates, and X and Y are matrices containing all possible combinations of x and y values.

Example:

Suppose we want to create a two-dimensional grid of points in the range [-2,2] for both the x and y coordinates. We can use the meshgrid function as follows:

x = linspace(-2,2,101); % Create a vector of x-coordinates
y = linspace(-2,2,101); % Create a vector of y-coordinates

[X,Y] = meshgrid(x,y); % Create a grid of points

% Plot the grid
figure;
plot(X,Y,'k.');
xlabel('x');
ylabel('y');
title('Grid of Points');

This will create a grid of 101x101 points and plot them as black dots. The resulting plot will look like a square with points evenly spaced throughout.