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Mathematics Magazine Problems
Published Solutions to Problems in the Mathematics Magazine.
- Problem 1334 [December 1989]. Non-adjoint Matrix, proposed by William P. Wardlaw. MM 63 No. 5 (December 1990), 352-353.
- Problem 1336(b) [December 1989]. Derangements and Determinants, proposed by N. J. Lord. MM 63 No. 5 (December 1990), 354.
- Problem 1347 [April 1990]. Center of the Linear Group, proposed by James O. Chilaka. MM 64 No. 2 (April 1991), 136.
- Problem 1361 [December 1990]. Composition of Differentiable Functions, proposed by Mark Krusemeyer. MM 64 No. 5 (December 1991), 354.
- Problem 1378 [October 1991]. Triangular Numbers, proposed by Stephen G. Penrice. MM 65 No. 4 (October 1992), 267.
- Problem 1380 [October 1991]. Lower Bound for Positive Root, proposed by Thoddi C. T. Kotiah. MM 65 No. 4 (October 1992), 269.
- Problem 1383 [December 1991]. Probabilities of Partial Sums, proposed by Michael Handelsman. MM 65 No. 5 (December 1992), 350.
- Problem 1384 [December 1991]. Periodic Matrices, proposed by William P. Wardlaw. MM 65 No. 5 (December 1992), 350.
- Problem 1393 [April 1992]. A Dynamical System Recursion, proposed by Florin S. Pîrvǎnescu. MM 66 No. 2 (April 1993), 128.
- Problem 1395 [April 1992]. An n-gon Product Identity, proposed by Ioan Sadoveanu. MM 66 No. 2 (April 1993), 131.
- Problem 1404 [October 1992]. Difference of Prime Powers, proposed by Hillel Gauchman and Ira Rosenholtz. MM 66 No. 4 (October 1993), 269.
- Problem 1420 [April 1993]. Analytic Trigonometry, proposed by Cristian Turcu. MM 67 No. 2 (April 1994), 149.
- Problem 1607 [October 2000]. Ubiquitous Subsets, proposed by Hassan A. Shah. MM 74 No. 4 (October 2001), 330.
- Problem 1827 [October 2009]. The row sum divides the determinant, proposed by Christopher Hilliar. MM 83 No. 4 (October 2010), 305-306.
- Problem 2032 [December 2017]. The best L1 approximation by a constant, proposed by Noah H. Rhee, MM 91 No. 5 (December 2018) 391
Listed under “also solved”: 1613, 1615, 1616, 1621, 1623, 1625, 1629, 1631, 1632, 1648, 1758, 1797, 1799, 1811, 1841, 1845, 1856, 1892, 1900, 1916, 1921, 1924, 1940, 1942, 1943, 1951, 1952, 1953, 1954, 2011, 2017, 2019, 2022, 2028 and a few old ones more.