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undulating numbers

In base 10, numbers with the form ababaunicode

12121, 3737373

Unicode is a computing industry standard for the consistent encoding and handling of textuniform

In the same manneruniform distribution

Statistical distribution with constant probabilityunigram

M = 1/(b - a)

n-gram of size oneunion

Combine the elements of two or more setsunit circle

A circle centered at the origin (0, 0) with a radius of 1unit fraction

A fraction with 1 as the numeratorunit vector

For fractions n/m, the unit fraction is 1/m

A vector with a magnitude of oneunits of output depreciation

Depreciation based on asset usageunix time

The number of seconds since January 1, 1970unknown number

Also known as a variableunordered partitions

upper bound

Any number greater than or equal to all elements in a set.upper quartile

The top 25% of data set valuesutility

Preference for goods and services above money