Shell Scripts and Floating Point Arithmetic

[frying_pan_cat]

I have a script file which contains the following:

START=-0.0004078266210854053
END=0.001179981511086226
DIFF=$(($END - $START))

for i in $(seq -w 0 10)
	j=$(($START +$DIFF\*$i/10))
	./eqlat.out $j > dump${i}
done

Now this code doesn't work and from some googling it seems that the bash shell doesn't support floating point arithmetic. I tried using dtksh but the script file won't run at all then; it just says command not found. What's the best way to get this simple floating point arithmetic working?

Thanks

 

[frying_pan_cat]

It doesn't have to be bash but like I said i tried to use Korn93 but it doesn't seem to like that either. I just tried to use bash as I'm a linux newbie and bash is the one the examples I looked at were in.

I'll take a look at that link

 

[frying_pan_cat]

I've had a look at the link and it looks like it adds a floating point calculator but you have to type calc then your calculation. How would I save the values to a valiable such as DIFF in the example of the OP?

Thanks