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rwh2 Free

Recent Comments

  1. about 19 hours ago on Reality Check

    I had to put a blank space before and after the plus sign to get it to work.

  2. about 19 hours ago on Mike du Jour

    And all this time I thought obeisance was how you stood when you play the oboe.

  3. about 19 hours ago on Wallace the Brave

    Where can I get in line?

  4. about 19 hours ago on Wallace the Brave

    The gaps (slits) serve another purpose. When you’re out of slits you’re out of pier.

  5. about 20 hours ago on UFO

    I’m with the others on the name. Now I’m hungry for some sarges and eggs.

  6. about 20 hours ago on Sherman's Lagoon

    You’re welcome.

  7. about 20 hours ago on Reality Check

    I suspect that Prof. George Bergman (Univ. of California, Berkeley) might disagree with you.

    Please see: math . berkeley . edu / ~gbergman / misc / numbers / ord_ops . html

    P.S., I completed my first year Calculus by the time I completed high school. I won’t bore you by listing the mathematics classes I completed in college and graduate school.

  8. 2 days ago on Arlo and Janis

    You ought to see the machine that wraps the label on individual crayons. It’s amazing.

  9. 2 days ago on Reality Check

    The problem is that the notation 2(3) (or more generally, the notation ‘ab’ in algebraic terms) is not addressed in either BODMAS or PEMDAS. This leads to ambiguity in how one is to interpret the equation. Because of that ambiguity, 10 and 58 should be accepted as the correct answer.

  10. 2 days ago on Reality Check

    The question is whether you interpret 6^2÷2(3) + 4 as (((6^2)÷2)•3) + 4 or as ((6^2)÷(2•3)) + 4. If you interpret as the first you get 58 and with the second you get 10. ‘2(3)’ is an acceptable (in some circles) notation for ‘2•3’. If we use that as a semantic substitution in the original equation you have 6^2÷2•3 + 4. Since multiplication and division are of equal precedence, we proceed in a left to right evaluation. That would seem to indicate that the first interpretation is correct and the answer is 58. However, some interpret juxtaposition (i.e., 2(3) ) as a precedent between exponentiation and multiplication-division.

    The ambiguity in notation might be better illustrated by the algebraic formula ‘a / bc’. If one uses a strictly left to right interpretation, it would be evaluated as (a÷b)•c, whereas if you interpret juxtaposition as a higher precedence than multiplication-division, it would be evaluated as a÷(b•c).

    The underlying problem is that there is not an accepted precedence for either the slant (‘/’) or the juxtaposition notations. So either 58 or 10 can be accepted as the correct answer.

    Maybe you should have said: show your work and your assumptions.