I'm actually doing that now. One of my HDTV transmitters at work has a reflected power of 0.5%. I'm using snmp to get the data in milliwatts then dividing the number for total and reflected power with a static value to achieve a percentage. I reduced the reflected divisor by 10. I then display a "0." on a web page. If it went out to 1% reflected power it would display as "0.1000" I think the bc tip will get me where I want to go. Thankyou! On Wed, 2004-11-10 at 22:33, Charles Curley wrote: > 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.
