Reading in equations for evaluation
- To: mathgroup at smc.vnet.net
- Subject: [mg18090] Reading in equations for evaluation
- From: Virgil Stokes <virgil.stokes at neuro.ki.se>
- Date: Thu, 17 Jun 1999 12:26:32 -0400
- Delivery-date: Thu Jun 17 15:18:38 1999
- Sender: owner-wri-mathgroup at wolfram.com
Within a Mathematica 3.0.1 notebook I would like to read in
a set of expressions that can be then be used (evaluated).
Example,
(* Input table of events from a file -- defines liste *)
...
file contains (e values):
200
190
210
...
(* Input expr1, expr2 from a file. These define in symbolic form, the
equations
to be used to calculate the other events *)
...
file contains (equations for start,stop events):
e - 40
e - 150
...
(* Now apply these equations to the events in the event file
to form a list of start, stop events *)
StrtEvents = {}; StopEvents = {};
Do[
e = liste[[k]];
strt = expr1; (* strt = e - 40; *)
stop = expr2; (* stop = e - 150; *)
StrtEvents = Append[StrtEvents,strt];
StopEvents = Append[StopEvents,stop];
,{k,1,Length[liste]}
];
Now the new event lists should contain:
StrtEvents = {160,150,170}
StopEvents = {10,0,20}
How can one accomplish this in Mathematica?
-- Virgil