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User:Joerg Arndt

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  • Basic combinatorics (generation and enumeration)
  • Basic number theory and finite fields (computational and algebraic aspects)
  • q-series, modular equations, functional equations
  • Iteration schemes for root-finding (Newton's method and higher order algorithms)
  • Fast orthogonal transforms (Fourier-, Hartley-, Walsh-Hadamard-, and similar transforms)
  • Low level and arithmetical algorithms
  • Plane-filling curves

My approach to most of the above is as a computationalist (high performance computing, usually using C++).