BRL: Braille through Remote Learning

Specialized Codes Course

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  • Superscripts, Subscripts, And Level Indicators

    Left-Superscripts and Subscripts:

    1. The appropriate level indicator must be used before a superscript or subscript to the left of its related sign.

      1. 3x

      2. nx

      3. -2 + -4 = -6

      4. +m - -n = +(m +n)

      5. (-2, -1, 0, +1, +2)

      6. (-3)-2+ +2

      7. 3P2

      8. 48C9 x 4C4

      9. nPr=K(n-1Pr-1)

      10. yxn

      11. xyn

    2. The appropriate superscript indicator must be repeated before a left-superscript when two superscripts are consecutive, but one applies to the expression preceding it and the other to the expression following it.

      1. pb cq

    3. The subscript indicator must be used before a left-subscript when two subscripts are consecutive, but one applies to the expression preceding it and the other to the expression following it.

      1. Pb cQ

      2. P1 2Q

    4. When a left-superscript is shown with a single-letter abbreviation, the English letter indicator is not used.

      1. 19,872,369 °C

      2. 10-23° F



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    in cooperation with the
    North Carolina Central University
    and the Governor Morehead School for the Blind

    Copyright © 1998