handle tensor inputs to ceiling function

[catherinelasersohn]

adds support for tensor inputs to the ceiling function

[leb2]

I see the old code is doing abs(significance) here. Do you need that in your code as well?

[catherinelasersohn]

thanks i fixed this

[leb2]

The conversion to torch looks correct to me.

I'm not sure if the abs is needed or not, but if it was not intentional to remove it then you can put it back