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# vector calculus watch

1. Just a quick question: I understand that (like taking a constant outside the integral) we can do the same thing with dot and cross products of constant vectors. Intuitively why is this obvious? I can kind of see how writing out the vector/dot product may show this via linearity of the integral, but don't 'see' it as obvious (considering this was done without any second thoughts in lectures).
2. (Original post by twig)
Just a quick question: I understand that (like taking a constant outside the integral) we can do the same thing with dot and cross products of constant vectors. Intuitively why is this obvious? I can kind of see how writing out the vector/dot product may show this via linearity of the integral, but don't 'see' it as obvious (considering this was done without any second thoughts in lectures).
The dot product of two vectors always gives a constant. The triple product is similar.

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