FAQ of Vectors

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Jarif Mahbub Srabon
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FAQ of Vectors

Unread post by Jarif Mahbub Srabon » Thu Oct 18, 2012 6:18 am

Can a scalar product be a negetive quantity?

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nafistiham
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Re: FAQ of Vectors

Unread post by nafistiham » Thu Oct 18, 2012 1:47 pm

$A\cdot B=AB \cos \theta$
what if $\theta > 90$?
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
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Gautampl
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Re: FAQ of Vectors

Unread post by Gautampl » Thu Apr 10, 2014 11:33 pm

Jarif Mahbub Srabon wrote:Can a scalar product be a negetive quantity?
Checkout here and you may find something interesting (that may not be your answer)
http://en.wikipedia.org/wiki/Negative_mass

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samiul_samin
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Re: FAQ of Vectors

Unread post by samiul_samin » Tue Feb 05, 2019 11:00 am

Jarif Mahbub Srabon wrote:
Thu Oct 18, 2012 6:18 am
Can a scalar product be a negetive quantity?
Yes,A scalar product can be a negative quantity.

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