Use better variable name for tests with only one vector.
Add scalarTripleProduct method. Fixes #2.

This is a simple, but useful wrapper for computing the scalar triple
product.
Merge pull request #7 from nubs/2-scalar-triple-product-for-3-dimensional-vectors

This PR was merged into nubs:master branch.

Discussion
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Add scalarTripleProduct method



Commits
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1419b9e84c92662a4756a2a52906a21ee9b69c5e Use better variable name for tests with only one vector. nubs
ca1ee7357b82fc8151ace26eba91ca85a029b4cf Add scalarTripleProduct method. Fixes #2.

This is a simple, but useful wrapper for computing the scalar triple
product. nubs