Positive is a property of positivity and may refer to: Mathematics and science Positive number, a number that's greater than 0 Positive operator, in functional analysis, a bounded linear operator whose spectrum consists of positive real numbers Positive formula, a logical formula not containing negation Positive electric charge, in physics Converging lens or positive lens, in optics Positive test, a diagnostic test result that's indicative of an abnormality Positive sense, said of an R… (More on Positive)