Re: doing operations with bash script

[alphabah]

I found where the error is coming from.
it is rather form dt that is written in exponential format and not from
torque.
Now I have to convert it in decimal format.



alphabah wrote:
> 
> Dear all,
> 
> I am trying to do some operation within a bash script but I am running
> into problems very early.
> 
> Say I want to do the following:
> -------------
> omegaNew=`echo "$omegaNew+$torque*$dt/$momentOfInertia*180/$pi" | bc -l`
> -----------
> I got these outputs:
> -----
> torque= -0.0665625 dt= 0.0012 omegaNew= -.00026392835805117909
> torque= 0.48041 dt= 0.000101208 omegaNew= -.00010327107397767696
> (standard_in) 1: syntax error
> torque= 1.14457 dt= 2.39891e-05 omegaNew=
> -----------
> Does this mean that the operation is not carried if the torque is not in
> the form 0.******?
> If so, why is that?
> 
> Another unrelated question:
> I got this output message,
> ----------
> sed: -e expression #1, char 1: unknown command: `C'
> ---------
> even the command did what it was supposed to do (i.e., inserting a line)
> whould one know how to get rid of this thing?
> 
> Best regards to all.
> 
> 
> 
> 

-- 
View this message in context: 
http://old.nabble.com/doing-operations-with-bash-script-tp33447614p33448226.html
Sent from the Gnu - Bash mailing list archive at Nabble.com.