3
votes
2answers
206 views

Mathematica does not understand (R^3)^(1/3) is the same as R [closed]

In the output from a calculation in mathematica stands a/((R^3*c)^(1/3)), with c and a ...
3
votes
1answer
117 views

Using external variable as a variable inside WhenEvent & NDSolve

I'm trying to use the new WhenEvent functionality of NDSolve in Mathematica 9, in order to perform an action when a variable in the system reaches a certain value. I would like this variable to come ...
1
vote
0answers
276 views

Using constraints in Solve[]

I'm not sure if the title fits. I'm basically just looking for a way to define a value and constrain it to $[a,b]$ when I use Solve later. More specifically, I ...