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function that accepts vector

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Rachel Dawn
Rachel Dawn 2018-2-23
编辑： John D'Errico 2018-2-23
Can someone explain why I must use ".^" in the first function but then ".*" in the second? (for both to accept vectors and scalars) Why don't I use ".*" in the first?
f=(13/400)*(x.^3 - 30.876*x.^2 + 32.454*x + 99.89) g =(2*x.*exp(cos(6*x)).*exp(-x)) + 15
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John D'Errico
John D'Errico 2018-2-23
编辑：John D'Errico 2018-2-23
You asked virtually this same question before. You got multiple people explaining it to you then. Read the responses you received there.

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