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I'm trying to find a resolution of the three vectors product in geometrical algebra, and there's no book or text that explaines this.

The geometrical product of two vectors is defined like this:

ab=a·b+a^b

Where a·b is the inner product, and a^b is the outer product.

a·b = 1/2 (ab+ba) and a^b=1/2 (ab-ba)

In the case of three vectors, I have:

a^b^c=1/2(abc-cba)

where a^b^c is the external product of three vectors.

But the question is how to calculate abc. Does anybody knows it???

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# Geometric and extern product

Can you offer guidance or do you also need help?

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