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Full Discussion: Help with calculator code
Top Forums Shell Programming and Scripting Help with calculator code Post 302391433 by mac4rfree on Monday 1st of February 2010 02:10:52 PM
Old 02-01-2010
Help with calculator code
Hi Guys,

I found this code in net.. it is working fine..
But can anybody explain me the sed statement used in the code..

Code:
    echo "Enter the expression:\c"
read express
eval echo "$express"|sed 's/^/'$precision' \
/'|bc -l|\
    sed -n '1,${
        /syntax/!{
        }
        /syntax/{
            a\
                Possible causes:\
                1. Error in expression\
                2. Variable not enclosed in (), supplied -ve value\
                3. Exponents given as non-integers
        }
        s/\([ ]*\)\([^ ]*\)/\2/p
    }'

Thanks For your help in advance..

Regards,
Magesh

---------- Post updated 02-02-10 at 12:40 AM ---------- Previous update was 02-01-10 at 08:35 PM ----------

Guys come on man.. i was counting on you people
Last edited by mac4rfree; 02-01-2010 at 02:36 PM..
 

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LEARN ABOUT DEBIAN

graphics::primitive::insets

Graphics::Primitive::Insets(3pm)			User Contributed Perl Documentation			  Graphics::Primitive::Insets(3pm)

NAME

       Graphics::Primitive::Insets - Space between things

DESCRIPTION

       Graphics::Primitive::Insets represents the amount of space that surrounds something.  This object can be used to represent either padding
       or margins (in the CSS sense, one being inside the bounding box, the other being outside)

SYNOPSIS

	 use Graphics::Primitive::Insets;

	 my $insets = Graphics::Primitive::Insets->new({
	   top	   => 5,
	   bottom  => 5,
	   left    => 5,
	   right   => 5
	 });

METHODS

   Constructor
       new Creates a new Graphics::Primitive::Insets.

   Instance Methods
       as_array
	   Return these insets as an array in the form of top, right, bottom and left.

       bottom
	   Set/Get the inset from the bottom.

       equal_to
	   Determine if these Insets are equal to another.

       left
	   Set/Get the inset from the left.

       right
	   Set/Get the inset from the right.

       top Set/Get the inset from the top.

       zero
	   Sets all the insets (top, left, bottom, right) to 0.

AUTHOR

       Cory Watson, "<gphat@cpan.org>"

SEE ALSO

       perl(1)

COPYRIGHT &; LICENSE
       Copyright 2008-2010 by Cory G Watson.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.12.3							    2010-08-21					  Graphics::Primitive::Insets(3pm)
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