Data Analysis and Visualisation Software
EXTREMA is a high level,
interactive programming environment with user friendly graphics
and sophisticated mathematical analysis capabilities. Over 200
numeric and character functions are provided, as well as over 30
operators, providing all of the operations of simple calculus, along with
powerful curve fitting, filtering and smoothing techniques, and employing a
dynamic array management scheme allowing arrays limited in size only by
system resources. Algebraic expressions of arbitrary complexity are
evaluated using a lexical scanner approach. Line graphs, histograms and pie
charts, as well as contour, density and surface plots are available. The
user interface is a command language with a simple to use and easy to learn
syntax, incorporating basic elements of a structured programming language
including conditional branching, looping and subroutine calling
constructs.