Scalar Dot Product

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Scalar Dot Product

Postby lora » Sat Apr 20, 2013 5:30 pm

Vectors, Dot Product, scalar product - IB Maths HL

If




How can we find the dot product ?

Thanks
lora
 
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Re: Scalar Dot Product

Postby lily » Sat Apr 20, 2013 5:59 pm

Vectors, Dot Product, scalar product, inner product - IB Maths HL


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


, where is the angle between the two vectors.

another expression of scalar product is



where





The result of the sclar (inner) product is a scalar (a number)


Thus



Hope these help!!
lily
 
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Re: Scalar Dot Product

Postby lora » Sat Apr 20, 2013 6:23 pm

Thanks Lily!!
lora
 
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