vector multiplication with its transpose
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Hi experts,
I have question about an inequality how to implement in matlab??
the simple is that (y(t+1)-y(t))'W(y(t+1)-y(t))>y(t)'Wy(t)? Can I use a norm function for this?
回答（1 个）
James Tursa
2020-4-14
编辑：James Tursa
2020-4-14
Variables and expressions in MATLAB need an operator between them ... there is no implied multiply. So this
(y(t+1)-y(t))'W(y(t+1)-y(t))>y(t)'Wy(t)
should be this instead
(y(t+1)-y(t)).' * W * (y(t+1)-y(t)) > y(t).' * W * y(t)
4 个评论
Muhammad Atif
2020-4-14
Muhammad Atif
2020-4-14
James Tursa
2020-4-14
编辑：James Tursa
2020-4-14
For a numeric column vector, norm(y(t)) would give the same result as sqrt(y(t)' * y(t)) if that is what you are asking.
How is this being used? Are these numeric or symbolic?
Muhammad Atif
2020-4-15
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2020-4-14
2020-4-15
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