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

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Yuval
Yuval 2013-3-27
评论： Carlos Flores 2022-9-25
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);?

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the cyclist
the cyclist 2013-3-27
编辑：the cyclist 2013-3-27
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);

更多回答（2 个）

Pranali Navale
Pranali Navale 2021-4-14
m=rand([1 20],5,5)
  2 个评论
Steven Lord
Steven Lord 2021-4-14
Ran in:
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.

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Luis Freitas
Luis Freitas 2022-2-22
ceil((rand(5,5)+(11/9))*45)

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