# Multiplication between elements of two different cells

5 views (last 30 days)
Amit Chakraborty on 9 Oct 2021
F= num2cell(rand(360,4^3),2);
T= num2cell(rand(10,4^3),2);
RR = F{1:36}.*T{1};
EE = F{37:73}.*T{2};
Error :: Error using .* . Too many input arguments.
Explanation what I actually want :
Here, the size of F and T is 360x1 cell and 10x1 cell respectively. I want to multiply in such a manner that the : first 36 row of F will be multiplied by the first row of T and next 36 row of F will be multiplied by second row of T and continue the like this. And the resultant Matrix will have the size (360,4^3). I am getting error and may be my logic in code is also wrong. Any kinds valuable suggestions will be appreciated.
Stephen on 9 Oct 2021
"Any kinds valuable suggestions will be appreciated."
Probably using numeric arrays would be much simpler. What you want looks like it could be achieved by one simple call to TIMES or MTIMES with appropriately sized arrays.

Jan on 9 Oct 2021
"first 36 row of F will be multiplied by the first row of T and next 36 row of F will be multiplied by second row of T and continue the like this."
F = rand(360, 4^3);
T = rand(10, 4^3);
FF = reshape(F, 36, 10, []);
TT = reshape(T, 1, 10, []);
Result = reshape(FF .* TT, 360, []);
Converting the arrays into a cell is not useful.
Amit Chakraborty on 9 Oct 2021
@Jan @Stephen Thank you so much for the valuable suggestions and sharing your knowledge.