Offprints of MJD Powell
  1. A Fortran Subroutine to Invert a Rectangular Matrix of Full Rank. MJD Powell. Theoretical Physics Division, Atomic Research Establishment, Harwell, Berkshire 1969. AERE-R-6072.
    (3 copies available)
  2. A Fortran Subroutine for Unconstrained Minimization, Requiring first Derivatives of the objective function. MJD Powell. Theoretical Physics Division, Atomic Research Establishment, Harwell, Berkshire, 1970. AERE-R-6469.
    (2 copies available)
  3. A Fortran Subroutine for Drawing a Curve Through a Given Sequence of Data Points. S Marlow, MJD Powell. Theoretical Physics Division, Atomic Research Establishment, Harwell, Berkshire, 1972. AERE-R-7092.
    (4 copies available)
  4. A Fortran Subroutine for Calculating a Cubic Spline Approximation to a Given Function. MJD Powell. Theoretical Physics Division, Atomic Energy Research Establishment, Harwell, Berkshire. 1972.
    (4 copies available)
  5. A Fortran Subroutine for Plotting a Cubic Spline Function. S. Marlow, MJD Powell. Theoretical Physics Division, Atomic Energy Research Establishment, Harwell, Berkshire. 1973. AERE-R-7470.
    (2 copies available)
  6. A Fortran Subroutine for Plotting the Part of a Conic that is inside a given Triangle. S Marlow and MJD Powell. Computer Science and Systems Division AERE Harwell, Oxfordshire, April 1976.
    (5 copies available)
  7. Direct Search Algorithms for Optimization Calculations. MJD Powell. Department of Applied Mathematics and Theoretical Physics, Acta Numerica, pp. 287-336. 1998.
    (11 copies available)
  8. An Optimal Way of Moving a Sequence of Points onto a Curve in Two Dimensions. MJD Powell, Department of Applied Mathematics and Theoretical Physics. Computational Organization and Applications 13, 163-185, 1999. Kluwer Academic Publishers.
    (22 copies available)
  9. Recent Research at Cambridge on Radial Basis Functions. MJD Powell. International Series of Numerical Mathematics, Vol. 132, 1999. Birkhauser Verlag Basel/Switzerland.
    ( 16 copies available)
  10. Proof of Convergence of an Iterative Technique for Thin Plate Spline Interpolation in two dimensions. AC Faul and MJD Powell, DAMTP. Advances in Computational Mathematics, 11, 1999, 183-192.
    (13 copies available)
  11. On the Convergence of the DFP Algorithm for Unconstrained Optimization when there are only two variables. Math. Program. Ser B 87, 281-301, 2000).
    (17 copies available)
  12. On the Lagrange Function of Quadratic Models that are Defined by Interpolation. MJD Powell, DAMTP. Optimization Methods and Software 36, pp. 289-309.
    (47 copies available)
  13. Book: Optimization Methods and Software, Vol. 16, No. 1-4. ISSN 1055-6788, CODEN OMSOE2, pages 1-310.
    (2 copies available)
  14. UOBYQA: Unconstrained Optimization by Quadratic Approximation. MJD Powell DAMTP. Math. Program. Ser. B. 92, 555-582 (2002).
    (23 copies available)
  15. On trust region methods for unconstrained minimization without derivatives. MJD Powell. Math. Program. Ser. B 97, 605-623 (2003)
    (28 copies as reprint available, 1 copy as A4 bound thin document - City University of Hong Kong)
  16. Least Frobenius Norm Updating of Quadratic Models that satisfy Interpolation Conditions. MJD Powell. Math. Program. Ser. B 100 183-214 (2004). Springer-Verlag.
    (25 copies available)
  17. On the use of Quadratic Models in Unconstrained Minimization without Derivatives. MJD Powell, DAMTP. Optimization Methods and Software 19, (2004), 399-411.
    (47 copies available)
  18. A Krylov Subspace Algorithm for Multiquadric Interpolation in Many Dimensions. AC Faul, G Goodsell, MJD Powell. IMA Journal of Numerical Analysis 25, 1-24 (2005).
    (12 copies available)
  19. Univariate Multiquadric Approximation: Reproduction of Linear Polynomials. MJD Powell. International series of Numerical Mathematics Vol. 94, 1990. Birkhauser Verlag, Basel.
    (15 copies available)
  20. A trust Region Algorithm for Equality Constrained Optimization. MJD Powell and Y Yuan. Mathematical Programming 49, 189-211 (1991).
    (21 copies available)
  21. Least Square Smoothing of Univariate Data to Achieve Piecewise Monotonicity. IC Demetriou and MJD Powell, University of Cambridge. IMA Journal of Numerical Analysis 11 11, 411-432 (1991).
    (20 copies available)
  22. The Minimum Sum of Squares Change to Univariate Data that gives Convexity. IC Demetriou, and MJD Powell. IMA Journal of Numerical Analysis 11, 433-448 (1991).
    (19 copies available)
  23. Univariate Multiquadric Interpolation: Some Recent Results. MJD Powell. Curves and Surfaces pp. 371-382. Academic Press, Boston.
    (17 copies available)
  24. Univariate Interpolation on a Regular Finite Grid by a Multiquadric Plus a Linear Polynomial. RK Beatson and MJD Powell. IMA Journal of Numerical Analysis 12, 107-133 (1992).
    (11 copies available)
  25. Univariate Multiquadric Approximation: Quasi-Interpolation to Scattered Data. RK Beatson and MJD Powell. Constr. Approx. 8:275-288 (1992).
    (12 Copies available)
  26. Tabulation of Thin Plate Splines on a Very Fine Two-Dimensional Grid. MJD Powell. Numerical Methods of Approximation Theory, Vol. 9, pp 221-244. International Series of Numerical Mathematics Vol. 105.
    (6 copies available)
  27. On the number of Iterations of Karmarkar's Algorithm for Linear Programming. MJD Powell. Mathematical Programming 62 (1993) 153-197, North-Holland.
    (20 copies available)
  28. Truncated Laurent Expansions for the Fast Evaluation of Thin Plate Splines. MJD Powell. Numerical Algorithms 5 (1993) 99-120).
    (9 copies available)
  29. The Uniform Convergence of Thin Plate Spline Interpolation in Two Dimensions. MJD Powell. Numerical Maths 68 107-128 (1994). Springer-Verlag).
    (14 copies available)
  30. Some Convergence Properties of the Modified Log Barrier Method for Linear Programming. MJD Powell. SIAM J. Optimization, 5, 695-739, (1995).
    (12 copies available)
  31. On Multigrid Techniques for thin Plate Spin Interpolation in two Dimensions. RK Beatson, G Goodsell, and MJD Powell. Lectures in Applied Mathematics 32 (1996), 77-97.
    (10 copies available)
  32. A New Iterative Algorithm for Thin Plate Spline Interpolation in two Dimensions. MJD Powell. Annals of Numerical Mathematics 4 (1997) 519-527.
    (13 copies available)
  33. A 'Taut' String Algorithm for Straightening a Piecewise Linear Path in two Dimensions. MJD Powell. IMA Journal of Numerical Analysis 18 (1998), 1-35.
    (15 copies available)
  34. The Use of Band Matrices for Second Derivative Approximations in Trust Region Algorithms. MJD Powell. Advances in Nonlinear Programming, 3-28 (1998 Kluwer).
    (13 copies available)
  35. The Convergence of Variable Metric Methods for Non-linearly Constrained Optimization Calculations. MJD Powell, Nonlinear Programming 3, 27-63.
    (12 copies available)
  36. A Discrete Characterization Theorem for the Discrete L1 Linear Approximation Problem. MJD Powell and FDK Roberts. Journal of Approximation Theory 30 (1980).
    (14 copies available)
  37. A Note on Quasi-Newton Formulae for Sparse Second Derivative Matrices. MJD Powell. Mathematical programming 20 (1981) 144-151.
    (21 copies available)
  38. Short Communication. An Example of Cycling in a Feasible Point Algorithm. MJD Powell. Mathematical Programming 20 (1981) 353-357.
    (25 copies)
  39. On the Acceptability of Rational Approximations that Interpolate the Exponential Function. A. Iserles, MJD Powell. IMA Journal of Numerical Analysis 1 (1981), 241-251.
    (18 copies available)
  40. An Upper Triangular Matrix Method for Quadratic Programming. MJD Powell, DAMTP. 1981 - Academic Press, 1-24.
    (24 copies available)
  41. The Watchdog Technique for Forcing Convergence in Algorithms for Constrained Optimization. RM Chamberlain, MJD Powell, C. Lemarechal, HC Pederson. Mathematical Programming Study 16 (1982), 1-17. North-Holland.
    (7 copies available)
  42. The Convergence of Variable Metric Matrices in Unconstrained Optimization. Ge Ren-Pu and MJD Powell. Mathematical Programming 27 (1983), 123-143. North-Holland.
    (14 copies available)
  43. On the Global Convergence of Trust Region Algorithms for Unconstrained Minimization. MJD Powell. Mathematical Programming 29 (1984) 297-303. North-Holland.
    (18 copies available)
  44. Conditions for Superlinear Convergence in l1 (subscript) and linfinity Solutions of Overdetermined Non-linear Equations. MJD Powell and Y Yuan. IMA Journal of Numerical Analysis 4 (1984 241-251.
    (18 copies available)
  45. On the Rate of Convergence of Variable Metric Algorithms for Unconstrained Optimization. MJD Powell. Proceedings of the International Congress of Mathematicians. August 16-24, 1983, Warszawa.
    (23 copies available)
  46. On the Quadratic Algorithm of Goldfarb and Idani. MJD Powell, DAMTP. December 1983/NA19.
    (7 copies available)
  47. A Recursive Quadratic Programming Algorithm that uses Differentiable Exact Penalty Functions. MJD Powell and Y Yuan. Mathematical Programming 35 (1986) 265-278.
    (20 copies available)
  48. The Differential Correction Algorithm for Generalized Rational Functions. EW Cheney and MJD Powell. Constr. Approx. 3 (1987) 249-256.
    (30 copies available)
  49. An Error Growth in the Bartels-Golub and Fletcher-Matthews Algorithms for Updating Matrix Factorizations. MJD Powell. Linear Algebra and its Applications 88/89 597-621 (1987).
    (13 copies available)
  50. Updating Conugate Directions by the BFGs Formula. MJD Powell. Mathematical Programming 38 (1987) 29-46.
    (23 copies available)
  51. Evelyn Martin Lansdowne Beale 1928-1985. Elected FRS 1979. MJD Powell FRS. Biographical Memoirs of Fellows of Royal Society. 33 (1987). (small bound book).
    (10 copies available)
  52. QR Factorization for Linear Least Squares Problem on the Hypercube. RM Chamberlain and MJD Powell, July 1986. Centre for Computer Science CCS/86/10. (Bound book format)
    (5 copies available)
  53. A Tolerant Algorithm for Linearly Constrained Optimization Calculations. MJD Powell. Mathematical Programming 45 (1989) 547-566.
    (33 copies available)