# Level - Science and Mathematics

Science and Mathematics

• Level (algebra), the least number of squares that sum to in a field
• Level set, a set where a function takes on a given constant value
• Level measurement, instrumentation techniques to measure height within a vessel
• Level of measurement, a theory of the kinds of scales or levels used for measuring
• Level, for a Categorical variable in statistics, the different values that such a variable can have
• Level, in Applied statistics, the different values that a factor can have
• Level, in the Design of experiments, the different treatments that are applied within a factor
• Classification levels, in Biological organisation, classrooms, churches, hospitals among others
• Energy levels, discrete amounts of energy that can be held by a quantum mechanical system or confined particle

### Famous quotes containing the words science and, science and/or mathematics:

Science and art, or by the same token, poetry and prose differ from one another like a journey and an excursion. The purpose of the journey is its goal, the purpose of an excursion is the process.
Franz Grillparzer (1791–1872)

The science of constructing a commonwealth, or renovating it, or reforming it, is, like every other experimental science, not to be taught a priori. Nor is it a short experience that can instruct us in that practical science, because the real effects of moral causes are not always immediate.
Edmund Burke (1729–1797)

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)