Partial function
Function whose actual domain of definition may be smaller than its apparent domain
- Reading time
- 5 min
- Complete text
- 8903 characters
- Dictionary coverage
- 87%
Knowledge reading in English
Choose a topic and a reading level, then open a complete locally stored article. Each page keeps the original English wording and revision attribution while adding transparent reading measures and exact links to the local dictionary.
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complete local articles 10
knowledge topics 0
visitor-time upstream calls
complete local articles 10
knowledge topics 0
visitor-time upstream calls
Local English knowledge library
876 matching articles
Incenter
Center of the inscribed circle of a triangle
- Reading time
- 5 min
- Complete text
- 7832 characters
- Dictionary coverage
- 87%
Petition for review under the European Patent Convention
Under the European Patent Convention (EPC), a petition for review is a request to the Enlarged Board of Appeal of the European Patent Office (EPO) to review a decision of a board of appeal. The procedure was introduced i
- Reading time
- 3 min
- Complete text
- 4230 characters
- Dictionary coverage
- 87%
Riemannian submersion
In differential geometry, a branch of mathematics, a Riemannian submersion is a submersion from one Riemannian manifold to another that respects the metrics, meaning that it is an orthogonal projection on tangent spaces.
- Reading time
- 2 min
- Complete text
- 2080 characters
- Dictionary coverage
- 86%
Security lighting
Lighting to deter trespassing on a property
- Reading time
- 5 min
- Complete text
- 8682 characters
- Dictionary coverage
- 86%
Corresponding squares
Feature of chess relating to both kings' positions
- Reading time
- 5 min
- Complete text
- 7246 characters
- Dictionary coverage
- 86%
Maximum theorem
Provides conditions for a parametric optimization problem to have continuous solutions
- Reading time
- 5 min
- Complete text
- 8587 characters
- Dictionary coverage
- 86%
Risser sign
Indirect measure of skeletal maturity
- Reading time
- 2 min
- Complete text
- 2383 characters
- Dictionary coverage
- 86%
Lionel convention
Lionel is a contract bridge bidding convention used in defense against an opposing 1NT openings. Using Lionel, over a 1NT opening of the opponents: :* a double is conventional and denotes spades and a lower suit (4-4 or
- Reading time
- 2 min
- Complete text
- 2010 characters
- Dictionary coverage
- 86%
Eakin–Nagata theorem
In abstract algebra, the Eakin–Nagata theorem states: given commutative rings A \subset B such that B is finitely generated as a module over A , if B is a Noetherian ring, then A is a Noetherian ring. (Note the converse
- Reading time
- 2 min
- Complete text
- 2471 characters
- Dictionary coverage
- 86%
Lucena position
Position in rook and pawn versus rook chess endgame
- Reading time
- 5 min
- Complete text
- 8036 characters
- Dictionary coverage
- 85%
888 (number)
Natural number
- Reading time
- 2 min
- Complete text
- 3243 characters
- Dictionary coverage
- 85%
Wrapped distribution
Probability distribution on a hypersphere
- Reading time
- 4 min
- Complete text
- 7775 characters
- Dictionary coverage
- 85%
Piano Sonata No. 1 (Beethoven)
Piano sonata composed by Ludwig van Beethoven
- Reading time
- 6 min
- Complete text
- 9591 characters
- Dictionary coverage
- 85%
Réti endgame study
Chess endgame study with king and pawn versus king and pawn
- Reading time
- 2 min
- Complete text
- 3146 characters
- Dictionary coverage
- 85%
Contestable market
Theory in economics
- Reading time
- 3 min
- Complete text
- 5255 characters
- Dictionary coverage
- 84%
Rhinophyma
Development of a large, bulbous nose
- Reading time
- 2 min
- Complete text
- 3434 characters
- Dictionary coverage
- 84%
Noise floor
Level of background noise in a signal
- Reading time
- 2 min
- Complete text
- 2094 characters
- Dictionary coverage
- 84%
Digital collections selection criteria
Digital Collections Selection Criteria are applied by organisations (typically libraries) creating a digital library which of their existing holdings and forthcoming acquisitions to digitize for inclusion. A strategy wit
- Reading time
- 2 min
- Complete text
- 2384 characters
- Dictionary coverage
- 84%
2D rotation
Movement of an object which leaves one point unchanged
- Reading time
- 2 min
- Complete text
- 2303 characters
- Dictionary coverage
- 84%
Greek identity card
National identity card of Greece
- Reading time
- 5 min
- Complete text
- 8853 characters
- Dictionary coverage
- 83%
Phyllis Wise
Biomedical researcher
- Reading time
- 2 min
- Complete text
- 2773 characters
- Dictionary coverage
- 83%
Singapore Mathematical Olympiad
Singapore mathematics competition
- Reading time
- 3 min
- Complete text
- 5100 characters
- Dictionary coverage
- 83%
Ostwald–Freundlich equation
Equation describing a phase boundary
- Reading time
- 3 min
- Complete text
- 4416 characters
- Dictionary coverage
- 83%
Cultural learning
Passing on of information from one group of people or animals to another
- Reading time
- 4 min
- Complete text
- 5453 characters
- Dictionary coverage
- 83%
Tectonics of the Tian Shan
The Tian Shan is a mountain range in central Asia that extends through western China, Kazakhstan, and Kyrgyzstan. The Tian Shan is long, and up to high. Throughout the Tian Shan there are several intermontane basins sepa
- Reading time
- 4 min
- Complete text
- 5806 characters
- Dictionary coverage
- 83%
Galileo's law of odd numbers
Mechanical law describing falling objects
- Reading time
- 2 min
- Complete text
- 2910 characters
- Dictionary coverage
- 83%
Grey Advertising (New Zealand) Ltd v Marinkovich
New Zealand legal case
- Reading time
- 2 min
- Complete text
- 2653 characters
- Dictionary coverage
- 82%
James S. Bielo
American socio-cultural anthropologist
- Reading time
- 2 min
- Complete text
- 3824 characters
- Dictionary coverage
- 82%
Kalwant Bhopal
Indian social scientist
- Reading time
- 2 min
- Complete text
- 3253 characters
- Dictionary coverage
- 82%