# Iterative insertion of random numbers in matrix

조회 수: 1(최근 30일)
Lucas Kellermann 2022년 1월 26일
편집: David Hill 2022년 1월 26일
I have a matrix X1.
Now i want to add the sum of two random Numbers
a_x = (-2.5 + (2.5+2.5)*rand(1,1))*1e-9;
l_x = (-2.5 + (2.5+2.5)*rand(1,1))*1e-9;
X1_MC = a_x+l_x
to the value in the first cell of X1.
Then i want to do the same with new random numbers
a_x = (-2.5 + (2.5+2.5)*rand(1,1))*1e-9; % not the same as step1
l_x = (-2.5 + (2.5+2.5)*rand(1,1))*1e-9; % not the same as step1
X1_MC = a_x+l_x
for the secon cell.
I want the process to repeat until the value of each cell in the matrix has been added by two random numbers. The size of X1 is not known
Sorry, I think it is not that compicated but I am new to matlab.

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### 채택된 답변

David Hill 2022년 1월 26일
편집: David Hill 2022년 1월 26일
r1=(5*rand(size(X1))-2.5)*1e-9;
r2=(5*rand(size(X1))-2.5)*1e-9;
Xnew=X1+r1+r2;
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Lucas Kellermann 2022년 1월 26일
Oh yes thanks. So simple haha

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