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Re^9: How to avoid an alphabet and integer next to it in a string?

by runrig (Abbot)
on Mar 21, 2014 at 19:20 UTC ( #1079340=note: print w/ replies, xml ) Need Help??

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Re^10: How to avoid an alphabet and integer next to it in a string?
by piscean (Acolyte) on Mar 21, 2014 at 19:26 UTC
    $molform =~ s/H\d*//g; worked for me except for Hg and He. Yup, I tried $molform =~ s/\s+$//;

    The output is zero

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