NAME

       surf - visualization of algebraic curves and surfaces

SYNOPSIS

       surf [FILE]...

DESCRIPTION

       surf is a script driven tool to render algebraic curves and surfaces.

       The  only  input  needed is the equation of an algebraic curve/surface in everyday mathematical notation.
       The output is a (series of) color or black and white image(s) in one of several file formats.

       surf also provides a C-style command language which helps working out more complicated equations.

       The resolution of an image is only bounded by the available memory. Since the image is stored as an array
       of floats and because some image processing algorithms need a copy  of  the  image,  you  need  at  least
       width*height*12 bytes of virtual memory.

       A  relevant  extension  to the image output filename can be automatically provided by either enabling the
       auto-extension machinery or giving a dummy  extension.   The  auto-extension  machinery  is  disabled  by
       default  for  backward  compatibility,  while  the  implemented  dummy extensions are: .xxx, .XXX, .auto-
       extension, and .automatic-extension.

       surf can handle curves/surfaces up to degree 30. The main features include  algebraic  curves,  algebraic
       surfaces,  hyper  plane sections, lines on surfaces, multiple curves/surfaces, adaptive anti aliasing and
       dithering.

OPTIONS

       --disable-auto-extension
              disable automatic extension for graphic files (default)

       --enable-auto-extension
              enable automatic extension for graphic files

       -v, --verbose
              verbose operation, print the executed commands (default)

       -q, --quiet, --silent
              quiet operation, do not print the executed commands

       -h, --help
              display this help and exit

       -V, --version
              display version tuple and exit

AUTHORS

       Stephan Endrass, Hans Huelf, Ruediger Oertel, Kai Schneider, Ralf Schmitt, Johannes Beigel

COPYRIGHT

       Copyright (C) 1997-2015 Johannes Gutenberg-Universitaet Mainz
       Copyright (C) 1996-1997 Friedrich Alexander Universitaet Erlangen-Nuernberg

surf (Debian )                                     March 2024                                            SURF(1)