The Indian Institutes of Management will conduct the CAT 2023 exam on November 26, 2023. The exam consists of three sessions covering Verbal Ability and Reading Comprehension, Data Interpretation and ...

Combination of encryption and decryption for secure communication is an application. Here, the authors are using permutation and substitution technique to make the people’s data more secure. It is ...

Eulerian polynomials have long occupied a central role in combinatorics, encapsulating critical information about permutation statistics. In their classical formulation, these polynomials encode the ...

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 37, No. 3 (1988), pp. 401-411 (11 pages) In observational studies, treated and control subjects are often matched on the ...