The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Courses » ap-calculus

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: [ap-calculus] Lies My Calculator Told Me
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  

Posts: 63
Registered: 12/6/04
[ap-calculus] Lies My Calculator Told Me
Posted: Jan 5, 2002 9:23 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Re:184270sqrt(3) + 78764sqrt(2) - 42555sqrt(6) - 1/12.

On a TI83 this looks like an integer. Jerry Uhl tried it on Mathematica.
Big deal. One, that is irrelevant here since the topic at hand was "lies
my calculator...
Secondly, even if there are no repeats to 60 decimal places, that does not
prove the expression is irrational. Only symbolic manipulation can do
that; Mathematica never can.



Visit AP Central(tm) - A new website by AP teachers, for AP teachers - the
official online home for AP professionals -->

To browse archives or change your list settings, visit

You are subscribed to ap-calculus as:
To unsubscribe send a blank email to

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.