I have a syms Array:
syms A11 A12 A13 A21 A22 A23 A31 A32 A33 a b c x y z
A=[A11 A12 A13;A21 A22 A23;A31 A32 A33]
How do I replace a symbolic variable A11 with an equation:
Direct link to this answer:
subs(A, A11, a*x+b*y+c*z)
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