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] Re: Obscure Exponential Function
Replies: 1   Last Post: Nov 14, 2003 1:21 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View  
Richard J Maher

Posts: 80
Registered: 12/6/04
[ap-calculus] Re: Obscure Exponential Function
Posted: Nov 14, 2003 1:21 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Hello all,

What does 4^3^x mean? Well ...............

1: To me, analytically, it means 4^(3^x), since when we write
it down, we really are forming the composition f(g(x)), with
f(x) = 4^x and g(x) = 3^x.

2: To my TI-83+, it means (4^3)^x, since that's what it
computes for any fixed value of x.

3: To the computer algebra systems on my SWP (Mu-pad and
Maple) it means 4^(3^x), since that's what it computes for
any fixed value of x.

Hope this helps,

Dick Maher

Richard J. Maher
Mathematics and Statistics
Loyola University Chicago
6525 N. Sheridan Rd.
Chicago, Illinois 60626

You are subscribed to ap-calculus as:

To unsubscribe send a blank email to

To update your preferences, search the archives or post messages online, visit

If you need help using Lyris web interface go to:

Visit AP Central(tm) - The online resource for teachers, schools, colleges, and education professionals--

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.