Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'Running time: slow, is it normal? Derivative.' topicStudent Support Forum > General > "Running time: slow, is it normal? Derivative."

Next Comment >Help | Reply To Topic
Author Comment/Response
Alonso
05/28/11 3:15pm

[Forum Moderator: similar to http://forums.wolfram.com/student-support/topics/25755. This expression, D[((x*l1...), x], turns out to be much more complicated that the earlier one.]

I am a beginner, and would like to know if it is possible to solve for x the first derivative of a long equation in Mathematica. Bear with me, my background is in Biomedical Sciences.

I am typing the following command:

Solve[D[((x*l1 + (1 - x)*l2)/((x^2*v1 + (1 - x)^2*v2 + 2*x*(1 - x)*c)^0.5))+((x*L1 + (1 - x)*L2)/((x^2*V1 + (1 - x)^2*V2 + 2*x*(1 - x)*C)^0.5)), x]==0,x]

But Mathematica 8 simply stops, and no output is given.

Any tips?

Cheers!

Alonso

URL: ,

Subject (listing for 'Running time: slow, is it normal? Derivative.')
Author Date Posted
Running time: slow, is it normal? Derivative. Alonso 05/28/11 3:15pm
Re: Running time: slow, is it normal? Derivative. Sjoerd C . d... 05/30/11 2:35pm
Next Comment >Help | Reply To Topic