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Originally Posted by GUILLE What is the norm of inner product? |
It is another way of saying the validity of Pythagorean theorem for finding the distance between two points.
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Originally Posted by GUILLE What other types o flinear transformations are there apart from fourier trasform? |
Eigenvalue solutions in solving partial differential equations. The existence of diagonalizable Hermitian matrices.
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Originally Posted by GUILLE What other things are studied in functional analyse apart from Hilbert spaces? |
Functions. All kinds of functions.