Properties of Partial Functions from a Domain to the Set of Real Numbers
Yūji Sakai · 1992
The article consists of two parties. In the first one we consider notion of nonnegative and nonpositive part of a real numbers. In the second we consider partial function from a domain to the set of real numbers (or more general to a domain). We define a few new operations for these functions and show connections between finite sequences of real numbers and functions which domain is finite. We introduce integrations for finite domain real valued functions.