eqn2graph man page on Archlinux

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EQN2GRAPH(1)							  EQN2GRAPH(1)

       eqn2graph - convert an EQN equation into a cropped image

       eqn2graph [ -unsafe ] [ -format fmt ]

       Reads  an  EQN equation (one line) as input; produces an image file (by
       default in Portable Network Graphics format) suitable for  the  Web  as

       Your input EQN code should not have the .EQ/.EN preamble that that nor‐
       mally precedes it within groff(1) macros; nor do you need to have  dol‐
       lar-sign or other delimiters around the equation.

       The  output image will be clipped to the smallest possible bounding box
       that contains all the black pixels.  Older versions of convert(1)  will
       produce	a  black-on-white  graphic; newer ones may produce a black-on-
       transparent graphic.  By specifying command-line options to  be	passed
       to  convert(1) you can give it a border, force the background transpar‐
       ent, set the image's pixel density, or perform other useful transforma‐

       This program uses eqn(1), groff(1), and the ImageMagick convert(1) pro‐
       gram.  These programs must be installed on your system  and  accessible
       on your $PATH for eqn2graph to work.

	      Run  groff(1)  in the `unsafe' mode enabling the PIC macro sh to
	      execute arbitrary commands.  The default is to forbid this.

       -format fmt
	      Specify an output format; the default is PNG  (Portable  Network
	      Graphics).  Any format that convert(1) can emit is supported.

       Command-line switches and arguments not listed above are passed to con‐

	      The eqn(1) initialization file.

	      The directory in which temporary files will be created.  If this
	      is  not set eqn2graph searches the environment variables TMPDIR,
	      TMP, and TEMP (in that order).  Otherwise, temporary files  will
	      be created in /tmp.

       Due  to changes in the behavior of ImageMagick convert(1) that are both
       forward and backward-incompatible, mismatches  between  your  eqn2graph
       and  convert(1)	versions  may  produce	zero-sized or untrimmed output
       images.	For this version of eqn2graph you will need a version of  con‐
       vert(1)	that  supports	the  -trim option; older versions of eqn2graph
       used -crop 0x0, which no longer has trimming behavior.

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

       Eric S. Raymond <esr@thyrsus.com>.

Groff Version 1.22.2		7 February 2013			  EQN2GRAPH(1)

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