=========================== Binary Arithmetic Operators =========================== `M言語プログラミングブック`_ [WALTERS1997]_ から引用 Page 43-45 Binary Arithmetic Operators allow you to perform basic mathematical operations between two number values. There exist seven distinct arithmetical operations within MUMPS. =========== ==================== ============ ========== Operator Title Example Value =========== ==================== ============ ========== \+ Addition 2+2 5 \- Subtraction 42-37 5 \* Multiplication 7*6 42 \** Exponentiation 6**2 36 \/ Fractional division 9/2 4.5 \\ Integer division 9\\2 4 \# Modulo 9#2 1 =========== ==================== ============ ========== .. _M言語プログラミングブック: http://books.google.com/books?id=jo8_Mtmp30kC&printsec=frontcover&dq=M+Programming&hl=en&sa=X&ei=2mktT--GHajw0gHnkKWUCw&ved=0CDIQ6AEwAA#v=onepage&q=M%20Programming&f=false ..