Here we prove the theorem about linear transformations from Rn to Rm. Theorem. A function f from Rn to Rm is a linear transformation if and only if it satisfies the following two properties: For every two vectors A and B in Rn. f(A+B)=f(A)+f(B); For every vector A in Rn and every number k. f(kA)=kf(A).
REXX was a computer programming language developed at IBM in the late 1970âs. Itâs a structured high-level language intended for scripting and macro writing. It was popularized in the Amiga computer operating system Amiga OS and later in IBMâs OS/2 but it existed before those on various IBM operating systems for mainframes and minicomputers.
Rex is James' Bloodhound who appears in the Disney Junior series Sofia the First. Rex makes brief appearances in the first season, during the song Count On Baileywick in the episode Baileywick's Day Off, A Royal Mess, and in the episode Tea for Too Many, where he is often seen with James on a leash.