Print out each matrix element

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Ken L
Ken L 2021-2-4
评论： Ken L 2021-2-5
Hi, I would like to ask, how can I print out all element in unknow matrix dimention?
E.g,
User will input any matrix dimension like [100 200 300; 400 500 600] or [100 200; 300 400; 500 600; 700 800] and etc. Then I will need to take all element do some formula and print like below,
prinnt out:
100 * formula = answer
200 * formula = answer
300 * formula = answer
400 * formula = answer
500 * formula = answer
600 * formula = answer
700 * formula = answer
800 * formula = answer
It depends on what matrix that user key in, I did tried use for index =1:length(user input) or size(user input), but both them seems cannot achieve what I want.
Thanks in advance.

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KSSV
KSSV 2021-2-4
Ran in:
You need to read about fprintf.
formula = 3 ;
A = rand(3) ;
[m,n] = size(A) ;
for i = 1:m
for j = 1:n
ele = A(i,j) ;
val = ele*formula ;
fprintf('%f * %f = %f\n',ele,formula,val)
end
end
0.477980 * 3.000000 = 1.433940 0.560227 * 3.000000 = 1.680680 0.591175 * 3.000000 = 1.773526 0.376574 * 3.000000 = 1.129721 0.612415 * 3.000000 = 1.837244 0.914196 * 3.000000 = 2.742589 0.593840 * 3.000000 = 1.781520 0.123138 * 3.000000 = 0.369415 0.404010 * 3.000000 = 1.212029

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