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How to solve this simple matricial system?

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Elia Paini
Elia Paini 2021-6-19
评论： Elia Paini 2021-6-20
Hi, how can I solve this simple system in Matlab?
A*u = h*G
A: 4x4
u: unknowns vector, but it should be 4x1
h: scalar
G: vector, Nx1
I tried with u = h*G*inv(Au), but u is calculated as a matrix in this way.
Thank you!

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采纳的回答

Matt J
Matt J 2021-6-20
u=A\(h*G)

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Jonas
Jonas 2021-6-19
编辑：Jonas 2021-6-19
you have to left multiply the matrix not right multiply
inv(A)*A*u=inv(A)*h*G;
leading to
I*u=inv(A)*h*G;
with I being the identy matrix

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