how to do product summation
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adarsh
el 7 de En. de 2018
L1=1;L2=2; L3=3; D1=2;D2=3; D3=5;
Then how will i do
C=(L1*D1)+(L2*D2)+(L3*D3)
in MATLAB using programming (similarly i have to do 350 number of L and D). Kindly help me out.
i was trying like this one;
sum=0
for i=1:3
C=Li*Di
end
but couldn't succeed. kindly help
2 comentarios
Stephen23
el 7 de En. de 2018
Editada: Stephen23
el 7 de En. de 2018
"similarly i have to do 350 number of L and D"
Then you should put your data into matrices, and so make your task trival. The name MATLAB comes from "MATrix LABoratory", and not from "lets put data into lots of separate numbered variables and make our code slow and complex".
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Star Strider
el 7 de En. de 2018
I would create vectors out of the ‘L’ and ‘D’ values, then multiply them using vector/matrix multiplication:
L1=1; L2=2; L3=3; D1=2; D2=3; D3=5;
L = [L1 L2 L3];
D = [D1 D2 D3];
C = L * D';
Note the transpose operator (') for ‘D’. That is necessary to produce the result you want.
3 comentarios
Jan
el 22 de Feb. de 2018
Editada: Jan
el 22 de Feb. de 2018
@adarsh: Of course it would have been much easier, if you did not create numbers variables from the beginning. It is much easier to work with vectors, matrices and arrays. Please consider Stephen's valuable comment and read the link carefully.
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