Bash decimal arithmetic?

[Charles Curley]

On Wed, Nov 10, 2004 at 10:18:32PM -0500, Graham Campbell wrote:
> On Wed, 2004-11-10 at 21:22 -0500, Dean Maluski wrote:
> > Does bash have an option to do non integer math in scripts?
> > I need my exact decimal numbers.
> > 
> 
> An "exact decimal number" is a contradiction in terms. If you can
> specify the precision you wish to retain then use bc to do the
> calculations.

Alternatively, scale your numbers. i.e. if you need two decimal
places, run everything internally as integers 100 times the "real"
value, and display with the decimal point in the correct place. Old
assembly language programmers' trick.

-- 

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