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  2. Index notation - Wikipedia

    en.wikipedia.org/wiki/Index_notation

    The second method is used when the number of elements in each row is the same and known at the time the program is written. The programmer declares the array to have, say, three columns by writing e.g. elementtype tablename[][3];. One then refers to a particular element of the array by writing tablename[first index][second index]. The compiler ...

  3. Help:List - Wikipedia

    en.wikipedia.org/wiki/Help:List

    However, many readers find this confusing, as the indentation makes it look more like a continuation of the last sublist item. Also, this technique may give, depending on CSS, a blank line before and after each list, in which case, for uniformity, every first-level list item could be made a separate list although this further complicates the code.

  4. Index of a subgroup - Wikipedia

    en.wikipedia.org/wiki/Index_of_a_subgroup

    A subgroup H of finite index in a group G (finite or infinite) always contains a normal subgroup N (of G), also of finite index. In fact, if H has index n, then the index of N will be some divisor of n! and a multiple of n; indeed, N can be taken to be the kernel of the natural homomorphism from G to the permutation group of the left (or right ...

  5. Word (group theory) - Wikipedia

    en.wikipedia.org/wiki/Word_(group_theory)

    In group theory, a word is any written product of group elements and their inverses. For example, if x, y and z are elements of a group G, then xy, z −1 xzz and y −1 zxx −1 yz −1 are words in the set {x, y, z}. Two different words may evaluate to the same value in G, [1] or even in every group. [2]

  6. Help:Keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Help:Keyboard_shortcuts

    page-info-kbd-shortcut [6] – The "I" keyboard shortcut now opens the "Page information" link in your sidebar. superjump [7] – Custom keyboard shortcuts to go to any page. accessKeysCheatSheet [8] - The "?" keyboard shortcut now overlays a list of all keyboard shortcuts available on the current page.

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Subgroup - Wikipedia

    en.wikipedia.org/wiki/Subgroup

    The identity of a subgroup is the identity of the group: if G is a group with identity e G, and H is a subgroup of G with identity e H, then e H = e G. The inverse of an element in a subgroup is the inverse of the element in the group: if H is a subgroup of a group G, and a and b are elements of H such that ab = ba = e H, then ab = ba = e G.

  9. Keyboard shortcuts in AOL Mail

    help.aol.com/articles/keyboard-shortcuts-in-aol-mail

    Shortcut Action; Mark as Read K: Mark as Unread Shift + K: Star L: Unstar Shift + L: Delete Del or Backspace: Archive E: Restore to inbox Shift + E: Open Move menu D: Go to the previous message Left arrow: Go to the next message Right arrow: Reply R: Reply all A: Forward F: Print P: Open attachmet preview Shift + P