My Math Forum [VECTORS] Calculating the projection of a vecton on other

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January 27th, 2014, 10:55 AM   #1
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[VECTORS] Calculating the projection of a vecton on other

Hi! i,m studying vectory operations from a book for 3D graphic.
In this paragraph is reported a formula

I need help to know how in a real problem, should sobstitute the n and v in the formula. For exemple v=[5,3] n=[2,0]
So let's calculate Vii= n ( (v*n)/|v|^"2) )

ok, i know how calculate the |v| (it's the magnitude), but what rapresents n and v ??
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 January 27th, 2014, 10:58 AM #2 Newbie   Joined: Jan 2014 Posts: 2 Thanks: 0 Re: [VECTORS] Calculating the projection of a vecton on othe n and v are bidimensional vectors, so, which of the two values i need to place in formula? Maybe i've to calculate the value twice sobstituting each time n1 v1(2 & 5) with n2 e v2 (0 & 2) ?

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