NAME

       eqn2graph - convert an EQN equation into a cropped image

SYNOPSIS

       eqn2graph [-format output-format] [convert-arguments]

       eqn2graph --help

       eqn2graph -v
       eqn2graph --version

DESCRIPTION

       eqn2graph  reads  a one-line eqn(1) equation from the standard input and writes an image file, by default
       in Portable Network Graphics (PNG) format, to the standard output.

       The input EQN code should not be preceded by the .EQ macro that  normally  precedes  it  within  groff(1)
       macros; nor do you need to have dollar-sign or other delimiters around the equation.

       Arguments not recognized by eqn2graph are passed to the ImageMagick or GraphicsMagick program convert(1).
       By specifying these, you can give your image a border, set the image's pixel density,  or  perform  other
       useful transformations.

       The  output  image  is  clipped  using  convert's -trim option to the smallest possible bounding box that
       contains all the black pixels.

OPTIONS

       -format output-format
              Write the image in output-format, which must be understood by convert; the default is PNG.

       --help Display a usage message and exit.

       -v
       --version
              Display version information and exit.

ENVIRONMENT

       GROFF_TMPDIR
       TMPDIR
       TMP
       TEMP   These environment variables are searched in the given  order  to  determine  the  directory  where
              temporary files will be created.  If none are set, /tmp is used.

AUTHORS

       eqn2graph  was  written  by  Eric S. Raymond ⟨esr@thyrsus.com⟩, based on a recipe for pic2graph(1), by W.
       Richard Stevens.

SEE ALSO

       pic2graph(1), grap2graph(1), eqn(1), groff(1), convert(1)