Re: Simple calculator

[Neale Pickett <neale@lanl.gov>]

Michael Meskes writes:
> On Thu, Aug 06, 1998 at 11:01:06AM -0700, David Welton wrote:
>> > That one´s really nice. However, bc cannot do sin(1), can it?
>> 
>> bc seems to actually work if you use it with -l:
>> 
>> MATH LIBRARY
>> If bc is invoked with the -l option,  a  math  library  is
>> preloaded  and  the default scale is set to 20.   The math
>> functions will calculate their results to the scale set at
>> lowing functions:
>> 
>> s (x)  The sine of x, x is in radians.
>> the time of their call.  The math library defines the fol

> Okay, you got me. I'm not interested in packaging calc anymore. I will
> use that function.

Maybe we could convince the bc maintainer to add a shell script to the
bc package (call it "calc" or something else easy to remember) which
does command-line calculations, then; it seems as though a lot of people
would find such a thing useful.


#!/bin/sh
if [ $# = 0 ]; then
  echo "`basename $0`: must supply something to calculate!" >&2
  exit 1
echo "$*" | bc -l | sed 's/0*$//'



-- 
Neale Pickett, propellerhead       Contact information in headers
Los Alamos National Laboratory, Network Engineering Group (CIC-5)


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