To generate random numbers in MATLAB, you can use the built-in function rand. This function generates random numbers between 0 to 1. You can control the size of the random matrix generated by the rand function by passing in the size as a parameter. Here are some examples:
1. Generate a single random number:
rand
Output:
0.4387
2. Generate a 3x3 matrix of random numbers:
rand(3)
Output:
0.7655 0.1869 0.8080
0.1869 0.4898 0.5720
0.7132 0.4456 0.7788
3. Generate a random vector of length 5, with values between 0 and 10:
rand(1,5)*10
Output:
[6.9617 9.7275 7.8122 5.2898 3.7990]
4. Generate a 2x4 matrix of random integers between 1 and 100:
randi([1,100],2,4)
Output:
81 34 73 23
15 58 97 74
Note that randi is a different function than rand, specifically designed to generate random integers.