Re: Convergence problem with pure iron?

[uwenh@xxxxxx]

> Often, you can just plot the BH curve and "eyeball" it to see if it 
looks
> ok. Unfortunately, because of the scaling of the plot, it is 
difficult to
> tell whether or not the BH curve is ok. This is actually what is 
going on
> with the "Pure Iron" curve--the curve fit is messed up in the steep 
initial
> section, but it's hard to see in the plot. I looked through the 
library, and
> it appears that the "430 Stainless" entry is also mucked up in a 
similar
> way--the rest of them appear to be OK.

All right, I wanted to "eyeball" myself, but I didn't have a Math 
package to get a cubic spline fit done. Luckily I found a set of 
freely 
available functions for Excel on this web site: 
http://www.netrax.net/~jdavita/XlXtrFun/XlXtrFun.htm
Maybe it's of some interest for others as well.

Rgds

Uwe.