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.
The SAY Instruction in Rexx is used to display text on the Mainframe Terminal. The syntax of the SAY Instruction is as follows -. SAY expression. Here's a simple Rexx Program to get you started with. The SAY <expression> Instruction always prints the value of the expression on the Mainframe terminal.