src/usr.bin/bc/bc.1 - diff

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Diff for /src/usr.bin/bc/bc.1 between version 1.17 and 1.18

version 1.17, 2004/08/25 21:59:59

version 1.18, 2004/10/19 07:36:51

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.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 files given, then reads

It takes input from any expressions on the command line and

the standard input.

any files given, then reads the standard input.

.Pp

Options available:

.Bl -tag -width Ds

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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

Allow specification of an arbitrary precision math library.

of an arbitrary precision math library.

The definitions in the library are available to command line

expressions.

.El

.Pp

The syntax for

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.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