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  2. Dyscalculia - Wikipedia

    en.wikipedia.org/wiki/Dyscalculia

    The earliest appearance of dyscalculia is typically a deficit in subitizing, the ability to know, from a brief glance and without counting, how many objects there are in a small group. Children as young as five can subitize six objects, especially while looking at the dots on the sides of dice .

  3. Wikipedia:Counting and sorting are not original research

    en.wikipedia.org/wiki/Wikipedia:Counting_and...

    However, counting and sorting are not original research and therefore can be included in any article where taking simple mathematical measures would add benefit. When working on an article with a large amount of data, it may be advantageous to group, sort, count, and rank data that has been reported in other reliable sources .

  4. Counting - Wikipedia

    en.wikipedia.org/wiki/Counting

    Number blocks, which can be used for counting. Counting is the process of determining the number of elements of a finite set of objects; that is, determining the size of a set. . The traditional way of counting consists of continually increasing a (mental or spoken) counter by a unit for every element of the set, in some order, while marking (or displacing) those elements to avoid visiting the ...

  5. Counting Bloom filter - Wikipedia

    en.wikipedia.org/wiki/Counting_Bloom_filter

    A counting Bloom filter is a probabilistic data structure that is used to test whether the number of occurrences of a given element in a sequence exceeds a given threshold. As a generalized form of the Bloom filter, false positive matches are possible, but false negatives are not – in other words, a query returns either "possibly bigger or equal than the threshold" or "definitely smaller ...

  6. Use filters to sort and organize messages in AOL Mail

    help.aol.com/articles/use-filters-to-sort-and...

    1. Click the Settings icon | select More Settings. 2. Click Filters. 3. Click the the filter you want to edit. 4. Edit the filter name, rules, or folder. 5. Click Save.

  7. Zero-based numbering - Wikipedia

    en.wikipedia.org/wiki/Zero-based_numbering

    In some mathematical contexts, zero-based numbering can be used without confusion, when ordinal forms have well established meaning with an obvious candidate to come before first; for instance, a zeroth derivative of a function is the function itself, obtained by differentiating zero times. Such usage corresponds to naming an element not ...

  8. Use spell check in AOL Mail

    help.aol.com/articles/check-spelling-in-new-aol-mail

    Don't worry about relying on your browser's spell check feature. With AOL Mail, click one button to check the entire contents of your email to ensure that everything is spelled correctly. In addition, you'll never need worry about typos or misspelled words again by enabling auto spell check. Use spell check

  9. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    If you see an image challenge question when sending mail, you should just be able to complete the challenge then send mail. If, however, you correctly answer the image challenge and still can't send mail, it could be a sign of a more serious issue with your account, which may require additional steps to secure your account.