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how can i make this loop?

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Mamad Mamadi
Mamad Mamadi el 19 de En. de 2020
Cerrada: MATLAB Answer Bot el 20 de Ag. de 2021
hi friends im new in matlab could you please help me in this problem.
I have an equations A ; A=x*a-b
x=[1 2 5 8 10];
i want to put x values into equation A one by one to solve it, which i mean x1=1, to solve A1 and x2=2 to solve A2 and so on.
after that i want to use the results that i found in this equation B= (A1...An / c).
thanks

Respuestas (1)

Star Strider
Star Strider el 19 de En. de 2020
No loop needed.
If you want to calculate ‘A’ with ‘a’ and ‘b’ already defined numerically as scalars, or if ‘b’ is a vector the same size as ‘x’, just do this:
A = x*a-b
If ‘a’ is a vector with the same dimensions as ‘x’, use element-wise multiplication:
A = x.*a+b
You might need to use bsxfun to do the vector multiplications if you have R2016a or earlier.
  6 comentarios
Mamad Mamadi
Mamad Mamadi el 21 de En. de 2020
sad to say i use the old version R2013a :(
Star Strider
Star Strider el 21 de En. de 2020
The bsxfun function was introduced in R2007a, so you can use it to do the multiplications. I believe the additions always used explicit expansion. If they do not, use bsxfun for those as well:
A = bsxfun(@minus, bsxfun(@times, x, a), b)
That should work.
The loops are all still there, however they are hidden in the bsxfun calls.

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