Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum > General > > "Strange NdSolve solution"

Post Reply:
Name:
Email Address:

Please send email when my message is replied to.

Url (optional):
Subject:
Message: view original message?
Attachment (optional):
Please answer this:2+1 =



Original Message (ID '426558') By Bill Simpson:
As t goes to infinity 2 E^-t+E^(2t) goes to infinity. When you include PlotRange->All the plot displays t up to around 100 and 2 E^-t+E^(2t) up to 7*10^86. If you do not include PlotRange->All the plot displays t up to around 70 and 2 E^-t+E^(2t) up to 2.5*10^59. When you include PlotRange->{-5, 5} you get a different part of the plot. Please describe exactly where 2 E^-t+E^(2t) going to infinity "z spikes up at a different value of t than it should be." Include specific {t,2 E^-t+E^(2t)} values that are incorrect.