If the decimals of a number x are rounded at place k after thedecimal poin

Discussion in 'Undergraduate Math' started by dan, Jan 1, 2011.

  1. dan

    dan Guest

    what can we say about the decimal representation of x^2 or sqrt(x) ?
    In other words, up to which digit of x^2 or sqrt(x), the resulting number is accurate?
    dan, Jan 1, 2011
    1. Advertisements

  2. It depends upon whether the number is rational or irrational.
    What can we say about sentences that don't begin with a capital letter?
    If the representation is eventually all zeros, then it's accurate
    at the last non-zero digit. Otherwise, it's never accurate.
    William Elliot, Jan 2, 2011
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.