Maple 11: puzzling result from DE solver

Unsure

Comment on 2007-04-17 10:25 from Scott03 ( Maple Rating 4

472)

I wasn't able to download the file (or view the maplenet file) since it appears that there is either a broken link somewhere (or maybe the server was down shortly for some repairs/updates). I did try the equation in both Maple 11 and Maple 10 on my machine and got the following answer:

y(x) = (sqrt(2)*(x+(3/2)*exp(x)*x-(3/2)*exp(x))+_C1)*exp(-x)

This looks roughly what you were expecting and seems to satisfy your initial equation. Could you verify that the equation you typed is correct?

Scott

exp(1) is not e

Comment on 2007-04-17 11:53 from Alex Smith ( Maple Rating 3

300)

Rich,

In Maple e is not Euler's constant 2.718....

Use exp(x) instead of e^x.

You can tell something is wrong when you see ln(e). If Maple knew e was exp(1), it would simplify ln(e) to 1.

exp(1) is not e

Comment on 2007-04-17 18:44 from woodwise (

65)

Thanks to you both for responding. This is it exactly. I am used to using e in other packages, and when Maple 11 posted results as, for example, e^(2x+3), I assumed that it understood my input. I'll know better in the future.

The file name that I uploaded might be part of the problem with viewing. I need to think about special characters that I use in file names that I intend to post here...

Scott, as an aside, I can't read or download the file either, so how did you get the equation that you got...?

Rich

View file details

Comment on 2007-04-17 21:42 from Scott03 ( Maple Rating 4

472)

If you click the link of "View file details" and you can see a picture of the worksheet. Just that you can't download the file so I couldn't see what was entered.

Scott

Thanks!

Comment on 2007-04-17 22:59 from woodwise (

65)

I thought that link was part of the link above...

Rich