
Is there way to use something like Assuming with the function SIgn?
Posted:
Nov 23, 2012 3:35 AM


Hello
I was wondering there is something similar to what can be done with Integrate, Reduce and Limit. Something like
list={1,2,a,3}
Assuming[a<0,Sign[list]]
Mathematica returns {1,1,Sign[a],1} and I would like to see something like {1,1,1,1}. Can that be done?
Many thanks
Ed

