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Created page with "== Definition and Overview == A Banach space is a complete normed vector space. This concept is named after the Polish mathematician Stefan Banach who introduced it in the early 20th century. In simpler terms, a Banach space is a playground in which mathematicians and physicists can perform calculations involving vectors and scalars. It is a set of elements, such as vectors, along with operations of vector addition and scalar multiplication, which satisfy certain axi..."