SIGMA - System for Interactive Graphical Mathematical Applications
SIGMA can be considered a system for interactive on-line numerical
analysis problem-solving which has been designed essentially for
mathematicians and theoretical physicists.
The major characteristics of SIGMA are:
- The basic data units are scalars, one-dimensional arrays, and
multi-dimensional rectangular arrays; SIGMA provides automatic
handling of these arrays.
- The calculational operators of SIGMA closely resembles the
operations of numerical mathematics; procedural operators are often
analogous to those of Fortran.
- The system is designed to be used in interactive mode; it
provides convenient facilities for graphical display of arrays in form
of (sets of) curves.
- The user can construct his own programs within the system
and has also access to a program library; he can store and retrieve his
data and programs; he obtains on request hard copy of alphanumeric and
graphical type.
SIGMA was operational for many years on the CYBER computers
at CERN. Most of its functionality has been converted to run on other
machines as part of the PAW (Q121) package.
Usage
See Chapter 6 of the PAW Manual.
CERN Program Library
