what is the meaning of '.' in the below equation?

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Ambika
Ambika il 11 Gen 2012
i saw an equation like tis ... but while running its showing error... pls tell what is the meaning of "." in below equation an how the answer to be come for this equation? F=(X1.-1)^2+(X2.-2.2)^2+1;
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Chandra Kurniawan
Chandra Kurniawan il 11 Gen 2012
What is X1 and X2?
a scalar or a matrix?
Ambika
Ambika il 11 Gen 2012
X1 and X2 are scalars

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Andrew Newell
Andrew Newell il 11 Gen 2012
What is the "meaning" of an erroneous expression? Probably the intended expression was
F=(X1-1).^2+(X2-2.2).^2+1;
Here .^ is the element-by-element power (see Array arithmetic).

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