Mathematics and Science
- Converging lens or positive lens, in optics
- Plus sign, the sign "+" used to indicate a positive number
- Positive (electricity), a polarity of electrical charge
- Positive element of a C*-algebra (such as a bounded linear operator) whose spectrum consists of positive real numbers
- Positive formula, a logical formula not containing negation
- Positive number, a number that is greater than 0
- Positive (photography), a positive image, in which the color and luminance correlates directly with that in the depicted scene
- Positive result, a result that has been found significant in statistical hypothesis testing
- Positive sense, said of an RNA sequence that codes for a protein
- Positive test, a diagnostic test result that indicates some parameter being evaluated was present
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Famous quotes containing the words mathematics and/or science:
“In mathematics he was greater
Than Tycho Brahe, or Erra Pater:
For he, by geometric scale,
Could take the size of pots of ale;
Resolve, by sines and tangents straight,
If bread and butter wanted weight;
And wisely tell what hour o’ th’ day
The clock doth strike, by algebra.”
—Samuel Butler (1612–1680)
“We have lost the art of living; and in the most important science of all, the science of daily life, the science of behaviour, we are complete ignoramuses. We have psychology instead.”
—D.H. (David Herbert)