How to generate random numbers using rand in MATLAB?

In MATLAB, the rand function can be used to generate random numbers. This function generates a uniformly distributed random number between 0 and 1.

Here is an example of using the rand function to generate random numbers:

1. Generate a random number.

x = rand;

1. Create a row vector of size 1xN, where N represents the number of random numbers.

x = rand(1, N);

1. Create a matrix with dimensions MxN, where M represents the number of rows and N represents the number of columns.

x = rand(M, N);

1. Create a multi-dimensional array with dimensions MxNxP, where M, N, and P represent the dimensions of the array.

x = rand(M, N, P);

Please note that the random numbers generated by the rand function are based on a fixed random seed. If you need to generate different random numbers each time you run the program, you can use the rng function to set a different seed value. For example:

rng('shuffle'); % 使用当前时间作为种子值
x = rand;