Dynamically changing 2 interdependent variables.
- To: mathgroup at smc.vnet.net
- Subject: [mg81420] Dynamically changing 2 interdependent variables.
- From: Michael Knap <michael.j.knap at comcast.net>
- Date: Sun, 23 Sep 2007 04:26:23 -0400 (EDT)
Ok, I have looked over the Documentation, but I still haven't quite
figured out how to do exactly what I want to do.
I am working on a Physics app dealing with waves, so I want to be able
to input a wave number either expressly, as k, or in terms of lambda.
This is the relationship: k = (2 Pi) / lambda .
I want to be able to change either variable in a Manipulate[] function,
and have the other update appropriately.
This is what I have started with:
Manipulate[
Dynamic[
Row[{
TraditionalForm[k = (2 Pi)/lam],
" = ",
TraditionalForm[2 Pi]/TraditionalForm[lam = (2 Pi)/k]
}]
],
{{k, 1}, .00001, 1},
{{lam, 2 Pi}, 2 Pi, 100}
]
Notice how changing the lam slider works as expected. Changing the k
slider does not.
Any help is appreciated.