Positive number

This article is a stub. Help us out by expanding it.

A positive real number (and so also rational number or integer) is one which is greater than zero.

Any real number which is not positive is either zero or negative. Therefore 0 is not truly positive. Also, a positive number is required to not have a minus sign before the number (only if it is not anequation).

See Also

Invalid username
Login to AoPS