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Substituting a syms with an equation

Asked by Philosophaie on 28 Jun 2013

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:

A11=a*x+b*y+c*z

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Philosophaie

1 Answer

Answer by Walter Roberson on 29 Jun 2013
subs(A, A11, a*x+b*y+c*z)

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Walter Roberson

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