Question

What is single-valued function?

(a) Single value for all instants of time

(b) Unique value for every instant of time

(c) A single pattern is followed by after ‘t’ intervals

(d) Different pattern of values is followed by after ‘t’ intervals of time

This question was posed to me in final exam.

I'm obligated to ask this question of Classification of Signals topic in chapter Signals and Systems Basics of Signals and Systems

Answer 1

Right option is (b) Unique value for every instant of time

To explain I would say: Single-valued function means “for every instant of time there exists unique value of the function”.