what does error msges means?

*To*: mathgroup at smc.vnet.net*Subject*: [mg13654] what does error msges means?*From*: Hwee Kuan Lee <hwee+ at andrew.cmu.edu>*Date*: Sat, 8 Aug 1998 01:36:27 -0400*Organization*: Doctoral student, Physics, Carnegie Mellon, Pittsburgh, PA*Sender*: owner-wri-mathgroup at wolfram.com

I am writing a mathematica program and got this error message, the first one is pretty striaght forward and i am sure what it is, but the second one is a little bit ambiguous. let me explain why i think so. -------------------- FindRoot::cvnwt: Newton's method failed to converge to the prescribed accuracy after 1000 iterations. General::stop: Further output of FindRoot :: cvnwt will be suppressed during this calculation. ------------------- my codes are : While[ (* conditions *), (* other codes *) mag[[i]] = m/.FindRoot[m==Tanh[(*some numbers *) m] ,{m,1},MaxIterations->1000]; (* other codes *) ] these error messages came out pretty soon in the for loop. so does that mean that all subsequence FindRoot output will not be correct? or just for the first few `loops' in the while loop?