☜ | exprAnnotations | ☞ |
Introduced in the 1977 ANSI M[UMPS] language standard.
This metalanguage symbol represents an expression. An expression (formula) starts with a basic value denoting object (expratom). Optionally, there may be more. If there is, first comes a (binary) operator, and then another basic value denoting object. The binary operator, in some cases, may be negated by a not sign ('). This additional part is called an exprtail. An expression may have any number of exprtails.
Introduced in the 1977 ANSI M[UMPS] language standard.
This metalanguage symbol represents the tail end of an expression. (See the metalanguage symbol expr).
Introduced in the 1977 ANSI M[UMPS] language standard.
This metalanguage symbol represents any of the logical binary operators, i.e. one of ! or &.
Approved for addition in a future M[UMPS] language standard.
The logical operator !! (exclusive or) is added to the list of possible operators.
Introduced in the 1977 ANSI M[UMPS] language standard.
This metalanguage symbol represents any of the relational binary operators (i.e. one of =, <, >, [ or ]) or any of the logical binary operators, (i.e. one of !, or &).
Copyright © Standard Documents; 1977-2024 MUMPS Development Committee;
Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.
Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.
This page most recently updated on 15-Nov-2023, 09:47:42.
For comments, contact Ed de Moel (demoel@jacquardsystems.com)