Group Abstract Group Abstract

Message Boards Message Boards

0
|
6.9K Views
|
2 Replies
|
0 Total Likes
View groups...
Share
Share this post:

Equation Derivation with derivatives

Yuanhang Chen
Posted 11 years ago

I have been doing equation substitution and derivation with derivative terms(e.g. dudx), what happens is that the dudx will be automatically evaluated as 0, threrefore any derivation with this term goes to zero, instead of keep it as a derivative.

Any ideas to resolve this?

Thanks, YC
POSTED BY: Yuanhang Chen
2 Replies
Sort By:
David Keith
David Keith
Posted 11 years ago 
In[1]:= D[u, x]

Out[1]= 0

In[2]:= D[u[x], x]

Out[2]= Derivative[1][u][x]

In[3]:= Dt[u, x]

Out[3]= Dt[u, x]
POSTED BY: David Keith
Yuanhang Chen
Yuanhang Chen
Posted 11 years ago

Thanks!
POSTED BY: Yuanhang Chen
Reply to this discussion
Community posts can be styled and formatted using the Markdown syntax.
Tag limit exceeded
Note: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.
Reply Preview
Attachments
Remove
or Discard