IB Maths HL Vectors, Dot Product

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IB Maths HL Vectors, Dot Product

Postby elizabeth » Wed Mar 13, 2013 8:38 pm

IB Mathematics HL – Vectors, Dot Product, scalar product

If




How can we find the dot product ?

Thanks
elizabeth
 
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Re: IB Maths HL Vectors, scalar Product

Postby miranda » Wed Mar 13, 2013 9:05 pm

IB Mathematics HL – Vectors, Dot Product, scalar product, inner product


The dot (scalar) product of two vectors is defined as following


, where \theta is the angle between the two vectors.

another expression of dot product is



where





The result of the dot product is a scalar


Thus



Hope these help! :) :)
miranda
 
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IB Mathematics HL Vectors, Dot Product

Postby elizabeth » Sun Mar 17, 2013 5:11 pm

Thanks miranda!!
elizabeth
 
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