# solving ax=b for x

조회 수: 8(최근 30일)
Boss Man 23 Feb 2020
댓글: Rena Berman 14 May 2020 16:49
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

#### 댓글 수: 3

Mario Malic 24 Feb 2020
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.
Stephen Cobeldick 27 Feb 2020
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 14 May 2020 16:49

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### 답변(1개)

Sai Bhargav Avula 23 Feb 2020
Hi,
You can use the mldivide or \, for solving the same.
Refer the following link for detailed explanation,
Hope this helps!

#### 댓글 수: 2

Boss Man 23 Feb 2020
how would i include the summation
Sai Bhargav Avula 24 Feb 2020
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'

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