New entries

Knot vector English Least squares approximation English Spline English Open set preimage English Polynomial continuity English Algebraic bounding English ε–δ definition English Piecewise function English Continuity at a point English One-sided continuity English One-sided limit English Chain rule English Domain restriction English Rational root behavior English Cancellations English Recurrence relation English Verification by expansion English Expression reconstruction English Reverse distribution English Term-by-term distribution (methodical expansion across each term of a sum) English Multipliers English Event detection English Poincaré section English No-Ponzi requirement English Transversality condition English Function space trace English Boundary terms English Functional English Second variation English Extremal principle English Collision English Pigeonhole principle English Hindman's theorem English Ramsey theory English Combinatorics English Mathematical notation English James Joseph Sylvester English Hessian matrix English Sylvester’s criterion English Complementary index set English Principal minor English Quadratic form English Positive definite matrix English Anomaly scoring English Mahalanobis covariance metric English Mahalanobis distance English Level set English Regular value English Ellipsoid English Hypersurface English Strictly convex function English Sublevel set English Epigraph English Numerical approximation English Kuratowski convergence English argmax/argmin limit English Permutation test English Non-smooth statistic English Jackknife English Survey sampling English Divisor English Apportionment English Joint venture English Equitable accounting English Abuse of rights English Clean hands English Substituted asset English Constructive trust English Fiduciary duty English Judicature Acts English Account of profits English Equity English Appellate court English Precedence English Interim officeholder English Substantive officeholder English Seniority English Acting officer English Restricted approvals English Substitute approver English Encryption English Digital approval system English Decision gate English Checkpoint review English Approval milestone English milestone English incremental progress English Headway English Hierarchical Leadership (organizational ordering reflected in language) English Head English Merge English Constituency English Generative syntax English Matrix clause English Embedded clause English Clause English Heavy shift English Dummy pronoun English Extraposition English Partial English