Drawing 2025-02-07 11.38.32.excalidraw

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Text Elements

v - ca

Pa(v) = proj_a (v) = <a,v> / <a,a> * a

ca

This orthoganally gives: 0 * <a, > = <a,v> - c<a,a> ^X36GMTxB

Thus,

c = <a,v> / <c,a>