combinatoricsn.
/ˌkɒmbɪnəˈtɒrɪks/ Mathematics.
With singular agreement. The branch of mathematics dealing with combinations of objects belonging to a finite set in accordance with certain constraints, such as those of graph theory; combinatorial analysis.
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menadry1570
pure mathematics1605
mechanics1612
residuation1846
chaos theory1880
number theory1901
formalism1913
intuitionism1913
replacement theory1914
biomathematics1923
proof theory1929
finitism1935
mereology1938
combinatorics1941
cryptarithmetic1943
game theory1945
numerical analysis1946
queueing theory1951
constructivism1959
complexity1963
catastrophe theory1971
chaology1985
1902 Science 19 Sept. 469/2 In combinatorial analysis (combinatoric) the German school was contented with the deduction of rules for the writing down of all the combinations and permutations that are possible under given restrictions.]
1941 Bull. Calcutta Math. Soc. 32 65 (heading) On a method of finite combinatorics which applies to the theory of infinite groups.
1953 Ann. Math. Statistics 24 377 (heading) On some theorems in combinatorics relating to incomplete block designs.
1961 Math. Gaz. 45 199 (heading) Some problems in combinatorics.
1973 Sci. Amer. Apr. 113/1 As a little puzzle in combinatorics, can the reader determine the largest multiplicand one set of Napier's bones will form such that all smaller multiplicands can also be formed by the set?
1981 Times 5 Sept. 3/1 Solving the puzzle [sc. Rubik's cube] introduced three-dimensional geometry, general mathematical thought, group theory, combinatorics, and, if it was pulled apart, an introduction to a very clever piece of engineering.
This entry has not yet been fully updated (first published 1993; most recently modified version published online March 2019).
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n.1941