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Comparison of vector algebra and geometric algebra
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<p><a href="/facts/Geometric_algebra/yykKMNYx">Geometric algebra</a> is an extension of <a href="/facts/Vector_calculus/mXKIJLJE">vector algebra</a>, providing additional algebraic structures on vector spaces, with geometric interpretations. </p><p>Vector algebra uses all dimensions and signatures, as does geometric algebra, notably 3+1 <a href="/facts/Spacetime/uRIN1x4b">spacetime</a> as well as 2 dimensions. </p>