Hi,

consider this with gretl 2025a:

<console>

? matrix hello = {1/0} # to get invalid input
? = eigensym(hello)
Not a Number geschah bei Berechnung
? = eigen(hello)
      1.#INF

? = svd(hello)
         nan

</console>

So we have everything: a hard-stopping error, some IEEE code (?), and a gretl code. Plus, with a 6x6 matrix input I also saw that eigen() spat out a "Data error".

I think it would be good if this could be a little harmonized, no?

thanks

sven
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