factorback() problems

[Igor Schein <igor@txc.com>]

Hi,

1st of all, ?factorback says
factorback(fa,{nf})
and ??factorack says
factorback(f,{e},{nf})

inconsistency.

Also,

? factorback(matid(1),nfinit(x))
  ***   bug in GP (Segmentation Fault), please report
? factorback(matid(1),,nfinit(x))
  ***   bug in GP (Segmentation Fault), please report

SEGV regardless which function prototype is correct.

Thanks

Igor