Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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


Math Forum » Discussions » Inactive » calc_reform

Topic: defining important functions
Replies: 1   Last Post: Oct 16, 2001 7:29 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Mark Bridger

Posts: 22
Registered: 12/6/04
defining important functions
Posted: Oct 15, 2001 8:49 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply
att1.html (0.7 K)


I agree with Lou Talman's approach to exponential and log functions. I'd also like to suggest another approach, namely via differential equations. Exp(x) is a solution (if one exists) to y'(x) = y with y(0) = 1. You can get everything this way and it's fun. You get the power series from the DE (you don't need to go down the Tayler route). You can do the sine and cosine the same way, and use either one to define Pi, for example. It's a good project for an honors student.

Mark



---------------------------------
Do You Yahoo!?
Make a great connection at Yahoo! Personals.



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

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.