Introduction to GAUSS Language

Why GAUSS?

• Matrix/Array-Based Computation
• Loosely Structural Programming Environment
• 400-Plus Built-In Functions
• Use of Libraries and Packages
• Frontier Research: Implementation of New Methods and Algorithms

GAUSS Basics

• Windows Interface
• Basic Operations on Matrices

  +   -   ^   .*   ./   %   !	*   /
  .<   .<=   .==   .>=   .>   ./=	<   <=   ==   >=   >   /=
  .not   .and   .or   .xor	not   and   or   xor
  ~   |   .*.   *~

• Special Operators

  []   {}   :   .   ' (transpose)

• Useful Algebra and Matrix Operations

  exp   ln, log   abs   sqrt   pi   sin   cos

  inv, invpd (inverse)   det (determinant)

Example

• OLS: b=y/x