solving ax=b for x

So i have a matrix involving summations

matrix a = [F sum(sinp) sum(cosp)

sum(sinp) sum(sin^2(p)) sum(sinpcosp)

sum(cosp) sum(sinpcosp) sum(cos^2(p)) ]

b= [ X Y Z]

c=[sum(a) sum(asinp) sum(acosp)

how would i include the summations in the matrix

and how would I then be able to solve the matrix in terms of X Y Z

[Mario Malic]

Maybe it's best for you if you try calculating each element of matrices A and C and then plug them in respective matrix. Refer to documentation on 'sum'.

Then you can use mldivide as Sai pointed it out.

[Stephen23]

Original Question: "solving ax=b for x"

So i have a matrix involving summations

matrix a = [F sum(sinp) sum(cosp)

sum(sinp) sum(sin^2(p)) sum(sinpcosp)

sum(cosp) sum(sinpcosp) sum(cos^2(p)) ]

b= [ X Y Z]

c=[sum(a) sum(asinp) sum(acosp)

how would i include the summations in the matrix

and how would I then be able to solve the matrix in terms of X Y Z

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Sai Bhargav Avula]

Hi,

You can use the mldivide or \, for solving the same.

Refer the following link for detailed explanation,

https://in.mathworks.com/help/matlab/ref/mldivide.html

Hope this helps!

[Boss Man]

how would i include the summation

[Sai Bhargav Avula]

Can you elaborate what you meant by including summation in matrix. If your problem is to solve a*b' = c', then you can find b', from a\c'