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Re: Using Table and ignoring all errors and warnings?


Cases[Table[1/i, {i, -3, 2}], _?NumericQ] // Quiet

{-(1/3), -(1/2), -1, 1, 1/2}


Bob Hanlon

On Wed, Mar 28, 2012 at 5:57 AM, Mike Sheppard <mikesheppard42 at gmail.com> wrote:
> I would like to use Table function, but have it ignore any errors or warnings and skip that value if one is produced.
>
> Illustrative Example:
>
> Table[1/i, {i, -3, 2}]
> Power::infy: Infinite expression 1/0 encountered. >>
> {-(1/3), -(1/2), -1, ComplexInfinity, 1, 1/2}
>
> I would like the output to just be
>
> {-(1/3), -(1/2), -1, 1, 1/2}
>
> with no errors/warnings given as messages and the index that would produce a message to just be ignored. It's not just specific to 1/0 error, but an
y type of error or warning I want it to ignore it and skip to the next value; with the final output being a list of valid answers according to expr.
>
> Is there a way to do that? Thanks!
>



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