How to insert different size matrices into each row of a zero matrix

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Roak
Roak 2023-4-10
回答： VBBV 2023-4-10
I am using a for loop to solve multiple itterations of an equation. for each output, i wan it to store in a new row of a zero matrix, while keeping the output from the previous itteration as shown below
M = [ x1 0 0 0 ;
x1 x2 0 0 ;
x1 x2 x3 0;
x1 x2 x3 x4]

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回答（3 个）

KSSV
KSSV 2023-4-10
Ran in:
M = zeros(4) ;
for i = 1:4
M(i,1:i) = rand(1,i) ;
end
M
M = 4×4
0.3674 0 0 0 0.1426 0.9721 0 0 0.8203 0.1518 0.5443 0 0.9805 0.8734 0.5388 0.7684
Walter Roberson
Walter Roberson 2023-4-10
newvalues = as appropriate
M(end+1, 1:length(newvalues)) = newvalues;
VBBV
VBBV 2023-4-10
Ran in:
syms x [1 10]
n = 10;
for k = 1:n
M(k,1:k) = x(1:k);
end
M
M = 

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