Symbolic substitution for variable subscripts
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How should I perform the following substitution: 
? Can the subs function be used? Or do I have to take a manual approach and use sprintf into a char representation of the expression before converting it to symbolic form?
? Can the subs function be used? Or do I have to take a manual approach and use sprintf into a char representation of the expression before converting it to symbolic form?1 comentario
Walter Roberson
el 5 de Sept. de 2019
Supposing your a is to be 17 x 3, then
a = sym('a', [17 3]);
and then for any given numeric subscript j, sum(a(j,:))
However it is not possible to create the sum when j is symbolic
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el 5 de Sept. de 2019
el 5 de Sept. de 2019
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