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Re: Do loop is faulty


dumb_founded wrote:
> I define array a[i] and array b[i] of dimension 10.  Then I go through
> the following Do loop, or try to, that is.
> 
> 
> Array[c,10];
> Do[c[i]=NIntegrate[a[i]*x*Sin[b[i]*x],{x,0,b[i]}]
> 
> I get numerous error messages saying that b[i] is not a valid limit of
> integration.
> 
> This is sheer headache.  I will never try to use Mathematica for
> numerical analysis again.
> 
> All your efforts on this matter are sincerely appreciated.
> 
> 
> 
> Thanks
> 
Hi,

How about using the correct syntax - b[[i]] to obtain an element of your 
array!

David Bailey
dbaileyconsultancy.co.uk


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