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Re: [Help-gnucap] convergence problems

From: al davis
Subject: Re: [Help-gnucap] convergence problems
Date: Sat, 27 Jan 2007 21:38:21 -0500
User-agent: KMail/1.9.5

On Saturday 27 January 2007 05:46, Albert Zihlmann wrote:
> very backward time step
> convergence failure, reducing (itl4)
> newtime=7.629395e-13  rejectedtime=1.525879e-12 
> oldtime=0.000000e+00 using=1.000000e-12
> tried everything, still doesn't work, giving up
> Any idea whats going wrong?

Short answer ...  Convergence failure during transient analysis, 
count exceeded "ITL4".  

Try increasing ITL4 ..   ".option ITL4=100". (default value is 

I will send another mail in a day or so about how and why this 
works, and how to determine that, but I wanted to respond 
quickly, hence this short mail.

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