View Single Post
crazybird
#1
Oct23-11, 11:56 PM
P: 16
I am solving a PDE using NDSolve. It always give a message like:

"For the method`IDA, only machine real code is available. Unable to continue with complex values or beyond floating-point exceptions."

What does this mean? My code is as following.

NDSolve[{∂t S[z, t] == -I z S[z,t] -I A[z,t], ∂t A[z, t] == -I S[z,t] ,
S[z, 0] == 0, S[0, t] == -I t2 /2, A[z, 0] == 0, A[0, t] == t}, {S,A}, {t, 0, 1}, {z, 0, 1}, MaxSteps -> 10^6 ]

Any suggestions? Please Help!
Phys.Org News Partner Science news on Phys.org
Climate change increases risk of crop slowdown in next 20 years
Researcher part of team studying ways to better predict intensity of hurricanes
New molecule puts scientists a step closer to understanding hydrogen storage