===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/bc/bc.1,v
retrieving revision 1.17
retrieving revision 1.18
diff -c -r1.17 -r1.18
*** src/usr.bin/bc/bc.1	2004/08/25 21:59:59	1.17
--- src/usr.bin/bc/bc.1	2004/10/19 07:36:51	1.18
***************
*** 1,4 ****
! .\"	$OpenBSD: bc.1,v 1.17 2004/08/25 21:59:59 jmc Exp $
  .\"
  .\" Copyright (C) Caldera International Inc.  2001-2002.
  .\" All rights reserved.
--- 1,4 ----
! .\"	$OpenBSD: bc.1,v 1.18 2004/10/19 07:36:51 otto Exp $
  .\"
  .\" Copyright (C) Caldera International Inc.  2001-2002.
  .\" All rights reserved.
***************
*** 42,54 ****
  .Sh SYNOPSIS
  .Nm bc
  .Op Fl cl
  .Op Ar file ...
  .Sh DESCRIPTION
  .Nm
  is an interactive processor for a language which resembles
  C but provides unlimited precision arithmetic.
! It takes input from any files given, then reads
! the standard input.
  .Pp
  Options available:
  .Bl -tag -width Ds
--- 42,55 ----
  .Sh SYNOPSIS
  .Nm bc
  .Op Fl cl
+ .Op Fl e Ar expression
  .Op Ar file ...
  .Sh DESCRIPTION
  .Nm
  is an interactive processor for a language which resembles
  C but provides unlimited precision arithmetic.
! It takes input from any expressions on the command line and
! any files given, then reads the standard input.
  .Pp
  Options available:
  .Bl -tag -width Ds
***************
*** 66,74 ****
  instead of being interpreted by a running
  .Xr dc 1
  process.
  .It Fl l
! Allow specification
! of an arbitrary precision math library.
  .El
  .Pp
  The syntax for
--- 67,83 ----
  instead of being interpreted by a running
  .Xr dc 1
  process.
+ .It Fl e Ar expression
+ Evaluate
+ .Ar expression .
+ If multiple
+ .Fl e
+ options are specified, they are processed in the order given,
+ separated by newlines.
  .It Fl l
! Allow specification of an arbitrary precision math library.
! The definitions in the library are available to command line
! expressions.
  .El
  .Pp
  The syntax for
***************
*** 322,327 ****
--- 331,342 ----
  .Pp
  prints approximate values of the exponential function of
  the first ten integers.
+ .Pp
+ .Bd -literal -offset indent
+ $ bc -l -e 'scale = 500; 2 * a(2^10000)' -e quit
+ .Ed
+ .Pp
+ prints an approximation of pi.
  .Sh FILES
  .Bl -tag -width /usr/share/misc/bc.library -compact
  .It Pa /usr/share/misc/bc.library