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Thread: How do you prononce R^2?

  1. #1
    MHF Contributor arbolis's Avatar
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    How do you prononce R^2?

    Hi,
    How do you prononce $\displaystyle \mathbb{R}^2$,$\displaystyle \mathbb{R}^3$ and $\displaystyle \mathbb{R}^n$, in English?
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by arbolis View Post
    Hi,
    How do you prononce $\displaystyle \mathbb{R}^2$,$\displaystyle \mathbb{R}^3$ and $\displaystyle \mathbb{R}^n$, in English?
    This is how I pronounce them...

    $\displaystyle \mathbb{R}^2$ : "R" two
    $\displaystyle \mathbb{R}^3$ : "R" three
    $\displaystyle \mathbb{R}^n$ : "R" "n"
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  3. #3
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    I called it as:

    $\displaystyle \mathbb{R}^1$ = "$\displaystyle \mathbb{R}$to the power of one"
    $\displaystyle \mathbb{R}^2$ = "$\displaystyle \mathbb{R}$to the power of two"
    $\displaystyle \mathbb{R}^3$ = "$\displaystyle \mathbb{R}$to the power of three"
    $\displaystyle \mathbb{R}^n$ = "$\displaystyle \mathbb{R}$to the power of $\displaystyle n$"

    And so on.
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  4. #4
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    Quote Originally Posted by Chris L T521 View Post
    This is how I pronounce them...

    $\displaystyle \mathbb{R}^2$ : "R" two
    $\displaystyle \mathbb{R}^3$ : "R" three
    $\displaystyle \mathbb{R}^n$ : "R" "n"
    Like in French
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  5. #5
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    There are a few "special" ones in English.

    R^2 = "R squared" or "R to the second"
    R^3 = "R cubed" or "R to the third"

    Two and three are the only ones that I know of that have a "special" word like squared and cubed. Anything else is like this:

    R^4 = "R to the fourth"
    R^5 = "R to the fifth"

    I speak U.S. English, for whatever that's worth. The Brits and Aussies and all of those guys probably use something different :-D
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