# C++:3D Exercises

## Dot Product

Calculate the dot product of two vectors. Fill in the details in the function dotproduct

Wikipedia includes a good article on dot products. http://en.wikipedia.org/wiki/Dot_product#Definition

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## Cross Product

Calculate the cross product of two vectors. Fill in the details in the function crossproduct

Wikipedia includes a good article on cross products. http://en.wikipedia.org/wiki/Cross_product#Coordinate_notation

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## Vector Length

Calculate the magnitude of a vector. Fill in the details in the function length

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## Normalise a vector

Normalise the given vector. The direction should be the same, the length should be 1.

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## Normal to a plane

Find the unit normal to the plane that contains the three points given.

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