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Multiplying Floats/Decimals

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# 1  
Old 08-02-2007
Multiplying Floats/Decimals
Is there a way that i can get something like this to work:

Number=`expr 80 \* 10.69`

i.e. To multiply an integer by a decimal or a decimal by a decimal etc...?
thanks
# 2  
Old 08-02-2007
One approch among many...

n=$(echo |awk '{ print 80*10.69}')
# 3  
Old 08-02-2007
Thanks. How could i do something like this:

Number=$(echo | awk '{ print $TEST*10.69}')

where $TEST is some integer?
# 4  
Old 08-02-2007
Multiplying Floats/Decimals
Use "bc" here:

$ Number=`echo 80 \* 10.69 |bc`; echo $Number
855.20
# 5  
Old 08-02-2007
Quote:
Originally Posted by jaduks
Use "bc" here:

$ Number=`echo 80 \* 10.69 |bc`; echo $Number
855.20
This gives me an error:
line 34: bc: command not found
# 6  
Old 08-02-2007
Multiplying Floats/Decimals
Check whether "bc" is there in your machine or not.
It should be here : /usr/bin/bc (check with command: "whereis bc", check your PATH also to execute bc),
Hope this helps :-)
# 7  
Old 08-02-2007
not on my machine Smilie

is there some other way i can do this. i realise that it is really simple so there must be another easy way
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