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Re: How to remove external parentheses from a list


Integrate[<your expression>,Sequence@@{{x1,a,b},{x2,c,d},...,{xn,y,z}}]

On Aug 16, 2013, at 7:06 AM, Samuel Mark Young <sy81 at sussex.ac.uk> wrote:

>
> Hello,
>
> I'm looking for an easy way to remove the external parentheses from a list.  The list contains integration variables and their respective limits, it currently looks something like this:
>
> {{x1,a,b},{x2,c,d},...,{xn,y,z}}
>
> However, the Integrate (or NIntegrate function) in Mathematica wants me to write it like this:
>
> {x1,a,b},{x2,c,d},...,{xn,y,z}
> i.e. The external parentheses have been removed
>
> I've looked around online and seen suggestions for replacing the curly brackets "{" with a blank space " ", or using Apply (@@) but can't work out the correct syntax.
>
> Thanks for any help and advice!
>
> Regards,
> Sam
>
>




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