If i need to find the angle between two vectors a, b, which method should i use? dot or cross product?
And in when do i use dot/cross product to find the angle?
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If i need to find the angle between two vectors a, b, which method should i use? dot or cross product?
And in when do i use dot/cross product to find the angle?
Hello,
The dot product uses the cosine of the angle between the vectors and the cross product uses the sine of the angle :)
So it depends/
Well,given a choice, I'd prefer dot product. Computing it is simpler :D.Quote:
Originally Posted by MilK
Plus, dot product can be used in 2D space, not cross product :DQuote:
Originally Posted by Isomorphism
so if i want to find the angle, i can use either dot or cross product? which will give me the same result?
Yes although I agree that using the dot product would in general be more easier. If you were given two vectors, would you rather find their scalar or cross product?
of cos dot(Nod)