A real quantity 
for which 
is said to be positive.
A number that is positive is called a positive number, and an integer that is positive is called a positive integer.
Positive
See also
Negative, Nonnegative, Plus Sign, Positive Integer, Positive Matrix, ZeroExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Positive." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Positive.html