- #1

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**Vectors -- dot product and cross product?**

Hello

may i know when to dot product and cross product?? both look to same to me..

- Thread starter onceinalifetim
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- #1

- 38

- 0

Hello

may i know when to dot product and cross product?? both look to same to me..

- #2

NascentOxygen

Staff Emeritus

Science Advisor

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Basically, the dot product produces a scalar result---it has a magnitude and a + or - sign---but it isn't a vector. The cross product produces an answer which is itself a vector, and it's at right-angles to the plane containing the two vectors you multiplied.

- #3

berkeman

Mentor

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Dot products, cross products, and other basic vector operations are described here:Hello

may i know when to dot product and cross product?? both look to same to me..

http://en.wikipedia.org/wiki/Euclidean_vector

.

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