how to create random value matrix with size 3X5?

Question

SEID 2022-6-18

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回答： DGM 2022-6-18

my question is to create 3x5 matrix add its elemet is radomly from 1-10.

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Answer 1

Ayush Singh 2022-6-18

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Hi SEID

From my understanding of your question I assume you want to create 3*5 matrix of random numbers from 1-10

You can use the 'randi' function ( Uniformly distributed pseudorandom integers ) in folllowing way-

mat = randi(10,3,5)   % 3,5 is the size of the matrix and 10 is the upper range for the matrix elements.
mat = 3×5
     8     8     5    10     8
     4     1     9     4     8
     6     6    10     8     1

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Answer 2

DGM 2022-6-18

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If the numbers are supposed to be integers:

A = randi([1 10],3,5)
A = 3×5
     9     4     6     9    10
     5     6     1     6     6
     2     5     4    10     9

otherwise, if the numbers can be any value in the specified interval:

A = rand(3,5)*9+1
A = 3×5
    6.1228    3.6624    6.5019    7.3853    1.8787
    5.0588    4.5854    1.7705    8.1341    8.7430
    3.2489    8.8081    4.4995    4.7077    2.4313