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[apcalculus] Re: Obscure Exponential Function
Posted:
Nov 14, 2003 1:21 PM


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 TI83+, 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 (Mupad 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 17735083565 rjm@math.luc.edu
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