How to generate a matrix of random integers from 55 to 100?

Using function rand, should a matrix of random integers in the interval [55..100] be generated thus:

M = ceil((rand(5,5)+(11/9))*45);?

Answer 1

[the cyclist]

That looks right if you have to use rand(), for example if this is a school assignment.

Easier would be

M = randi([55 100],5,5);

[Joel Rodriguez]

great

[Carlos Flores]

Thank you it was very helpful!

Answer 2

[Pranali Navale]

m=rand([1 20],5,5)

[Steven Lord]

No, that will not work. The randi function accepts as its first input a range to control how large or small the generated random integer values can be. The rand function does not.

m = rand([1 20], 5, 5);

Error using rand
Size inputs must be scalar.

See the examples in the documentation for rand if you want to generate random values (not necessarily integer values) between 1 and 20.

[Nikunj Aswani]

use randi instead of rand

Answer 3

[Luis Freitas]

ceil((rand(5,5)+(11/9))*45)