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1

Problems and Solutions

Charles R. Wall, Charles W. Trigg, Gerald C. Dodds, Huseyin Demir, Leon Bankoff, John Beidler, Murray S. Klamkin, Sidney Kravitz, Zalman Usiskin, C. Stanley Ogilvy, Kaidy Tan, Stanley Rabinowitz, C. J

Journal:

Mathematics Magazine

Year:

1968

Language:

english

File:

PDF, 1.03 MB

english, 1968

2

Problems and Solutions

J. A. H. Hunter, Leon Bankoff, Douglas Lind, William K. Viertel, Alan Sutcliffe, H. Tracy Hall, Huseyin Demir, William E. F. Appuhn, Charles L. Belna, Martin J. Brown, Joy Ann Chuck, Peter Goldstein,

Journal:

Mathematics Magazine

Year:

1965

Language:

english

File:

PDF, 1.03 MB

english, 1965

3

The Metamorphosis of the Butterfly Problem

Journal:

Mathematics Magazine

Year:

1987

Language:

english

File:

PDF, 2.77 MB

english, 1987

4

Problems and Questions

V. C. Harris, George U. Brauer, Donald M. Brown, M. S. Klamkin, C. H. Pearsall Jr., Barney Bissinger, Leon Bankoff, Maïmouna Edy, N. Shklov, M. G. Probhakar, Chih-yi Wang, V. D. Gotchak, M. N. Goplan,

Journal:

Mathematics Magazine

Year:

1955

Language:

english

File:

PDF, 320 KB

english, 1955

5

Problems and Solutions

Leon Bankoff, J. Michael McVoy, Anton Glaser, Alan Wayne, Thomas W. Hill, Jr., Marlow Sholander, Robert Guy, Warren Page, Dixon Jones, Glenn D. James, Charles W. Trigg, Michael Golomb, Norman Schaumbe

Journal:

Mathematics Magazine

Year:

1974

Language:

english

File:

PDF, 1.02 MB

english, 1974

6

Problems and Solutions

Dewey C. Duncan, Leon Bankoff, S. Srinivasan, Huseyin Demir, B. J. Cerimele, Sidney H. L. Kung, Murray S. Klamkin, J. A. H. Hunter, Charles W. Trigg, Alfred Kohler, Mannis Charosh, Gregory Wulczyn, Ke

Journal:

Mathematics Magazine

Year:

1969

Language:

english

File:

PDF, 1.11 MB

english, 1969

7

Problems and Solutions

Huseyin Demir, Robert Siemann, Alexandru Lupas, Erwin Just, Sidney H. L. Kung, Simeon Reich, Claude Raifaizen, NSF Class at University of California at Berkeley, Leon Bankoff, S. O. Schachter, Michael

Journal:

Mathematics Magazine

Year:

1970

Language:

english

File:

PDF, 1.09 MB

english, 1970

8

Problems and Solutions

B. Suer, H. Demir, Leon Bankoff, Erwin Just, K. R. S. Sastry, K. W. Schmidt, Charles W. Trigg, A. Polter Geist, Warren Page, Helen Jick, Murray S. Klamkin, Gary R. Gruber, Lester Rubenfeld, Michael Fr

Journal:

Mathematics Magazine

Year:

1973

Language:

english

File:

PDF, 681 KB

english, 1973

9

The Asymmetric Propeller

Leon Bankoff, Paul Erdos and Murray S. Klamkin

Journal:

Mathematics Magazine

Year:

1973

Language:

english

File:

PDF, 341 KB

english, 1973

10

Problems and Questions

Chih-yi Wang, John M. Howell, Leo Moser, Leon Bankoff, V. Thebault, Huseyin Demir, N. Shklov, Ralph Everett, Murray S. Klamkin, E. P. Starke, H. M. Feldman, G. Polya, Barney Bissinger, Walter B. Carve

Journal:

Mathematics Magazine

Year:

1955

Language:

english

File:

PDF, 698 KB

english, 1955

11

An Elementary Proof of the Erdos-Mordell Theorem

Journal:

American Mathematical Monthly

Year:

1958

Language:

english

File:

PDF, 195 KB

english, 1958

12

Problems and Questions

Huseyin Demir, Dmitri Thoro, D. Moody Bailey, Murray S. Klamkin, M. S. Krick, Leon Bankoff, William Squire, Josef Andersson, Barney Bissinger, M. Morduchow, J. L. Brown, Jr., Lawrence A. Ringenberg, M

Journal:

Mathematics Magazine

Year:

1960

Language:

english

File:

PDF, 716 KB

english, 1960

13

Problems and Solutions

J. A. H. Hunter, Marlow Sholander, Simeon Reich, Charles W. Trigg, Zalman Usiskin, Norman Schaumberger, Michael J. Martino, John DeJoice, W. J. Blundon, L. Carlitz, Dewey C. Duncan, Leon Bankoff, Will

Journal:

Mathematics Magazine

Year:

1970

Language:

english

File:

PDF, 1019 KB

english, 1970

14

Problems and Solutions

Sidney Kravitz, A. A. Gioia, A. M. Vaidya, Huseyin Demir, Leon Bankoff, A. Struyk, M. B. McNeil, J. A. H. Hunter, William E. F. Appuhn, A. C. Garstang, Jeffrey L. Johnson, M. S. Klamkin, Douglas Lind,

Journal:

Mathematics Magazine

Year:

1966

Language:

english

File:

PDF, 826 KB

english, 1966

15

Problems and Solutions

John Hudson Tiner, Arthur Marshall, Huseyin Demir, F. D. Parker, Stanley Rabinowitz, Warren Page, Harry Sitomer, Dewey C. Duncan, Kenneth M. Wilke, Leon Bankoff, Paul D. Thomas, Lawrence A. Ringenberg

Journal:

Mathematics Magazine

Year:

1970

Language:

english

File:

PDF, 753 KB

english, 1970

16

Problems and Solutions

Maxey Brooke, Martin J. Cohen, L. Carlitz, C. W. Trigg, Frank Dapkus, Leon Bankoff, Herta Taussig Freitag, Stanton Philipp, J. Barry Love, Josef Andersson, Huseyin Demir, Mary Joy, C. Stanley Ogilvy,

Journal:

Mathematics Magazine

Year:

1964

Language:

english

File:

PDF, 863 KB

english, 1964

17

Problems and Solutions

Daniel I. A. Cohen, U. Alfred, Dermott A. Breault, Leon Bankoff, R. P. Steinkirk, M. Rumney, Huseyin Demir, Josef Andersson, W. C. Waterhouse, Gilbert Labelle, Robert P. Goldberg, F. D. Parker, Maxey

Journal:

Mathematics Magazine

Year:

1962

Language:

english

File:

PDF, 903 KB

english, 1962

18

Problems and Solutions

Max Rumney, Leon Bankoff, Joseph Malkewitch, Norman Schaumberger, H. S. Hahn, J. A. H. Hunter, Thomas Shewczyk, Eric Langford, J. David Martin, Michael Stolnicki, Jack M. Elkin, Murray S. Klamkin, Sta

Journal:

Mathematics Magazine

Year:

1968

Language:

english

File:

PDF, 1.29 MB

english, 1968

19

Problems and Solutions

Jerome H. Manheim, H. Demir, Charles W. Trigg, Erwin Just, M. S. Klamkin, Leon Bankoff, Heiko Harborth, Peter A. Lindstrom, Zalman Usiskin, Norman Schaumberger, M. G. Greening, E. M. Clarke, Richard A

Journal:

Mathematics Magazine

Year:

1974

Language:

english

File:

PDF, 995 KB

english, 1974

20

The Heptagonal Triangle

Leon Bankoff and Jack Garfunkel

Journal:

Mathematics Magazine

Year:

1973

Language:

english

File:

PDF, 864 KB

english, 1973

21

Problems and Solutions

P. D. Goodstein, R. L. Goodstein, Vassili Daiev, Stanley Rabinowitz, Charles W. Trigg, Huseyin Demir, Leon Bankoff, Yasser Dakkah, G. L. N. Rao, C. R. J. Singleton, Michael Goldberg, Monte Dernham, Lo

Journal:

Mathematics Magazine

Year:

1966

Language:

english

File:

PDF, 955 KB

english, 1966

22

Problems and Questions

Lee Tih-Ming, C. W. Trigg, B. L. Schwartz, M. S. Klamkin, Souren Babikian, Huseyin Demir, Leon Bankoff, Josef Andersson, C. F. Pinzka, D. Moody Bailey, Victor Thebault, A. F. Hordam, Sidney Kravitz, W

Journal:

Mathematics Magazine

Year:

1961

Language:

english

File:

PDF, 803 KB

english, 1961

23

A Simple Proof of the Morley Theorem

Journal:

Mathematics Magazine

Year:

1962

Language:

english

File:

PDF, 178 KB

english, 1962

24

Problems and Solutions

Huseyin Demir, Miltiades S. Demos, Maxey Brooke, R. N. Karnawat, J. M. Gandhi, Leon Bankoff, Joseph W. Andrushkiw, R. J. Mansfield, Josef Andersson, Dewey Duncan, Joseph B. Bohac, David L. Silverman,

Journal:

Mathematics Magazine

Year:

1963

Language:

english

File:

PDF, 877 KB

english, 1963

25

Problems and Solutions

W. J. Blundon, Willy Enggren, John E. Prussing, G. L. N. Rao, T. J. Burke, Mannis Charosh, Santosh Kumar, Douglas Lind, J. M. Gandhi, E. P. Starke, Max Rumney, Leon Bankoff, L. Carlitz, Joseph Malkewi

Journal:

Mathematics Magazine

Year:

1969

Language:

english

File:

PDF, 1.20 MB

english, 1969

26

Problems and Solutions

R. S. Luthar, Edwin P. McCravy, Stanley Rabinowitz, D. Rameswar Rao, Murray S. Klamkin, Gregory Wulczyn, Leon Bankoff, Ronald Dubson, Alfred Kohler, Ernest Wilkins, Jr., Rina Rubenfeld, L. Carlitz, Jo

Journal:

Mathematics Magazine

Year:

1971

Language:

english

File:

PDF, 1.05 MB

english, 1971

27

Problems and Solutions

Murray S. Klamkin, Guy G. Becknell, Kaidy Tan, Maxey Brooke, C. W. Trigg, M. N. Gopalan, Gilbert Labelle, Leon Bankoff, A. J. Kokar, C. F. Pinzka, D. Moody Bailey, Joseph W. Andrushkiw, C. N. Mills, J

Journal:

Mathematics Magazine

Year:

1962

Language:

english

File:

PDF, 723 KB

english, 1962

28

Problems and Questions

C. W. Trigg, Melvin Hochster, Chih-yi Wang, M. S. Klamkin, Joseph Andrushkiw, Sidney Kravitz, J. B. Love, D. A. Breault, Leon Bankoff, J. W. Clawson, Huseyin Demir, Edgar Karst, Harry M. Gehman, Victo

Journal:

Mathematics Magazine

Year:

1959

Language:

english

File:

PDF, 725 KB

english, 1959

29

The Ubiquitous 3:4:5 Triangle

Leon Bankoff and Charles W. Trigg

Journal:

Mathematics Magazine

Year:

1974

Language:

english

File:

PDF, 521 KB

english, 1974

30

Problems and Questions

J. M. Howell, Huseyin Demir, George Bergman, D. S. Mitrinovitch, L. Carlitz, Karl M. Herstein, Lowell Van Tassel, Leon Bankoff, M. S. Klamkin, Joe Straley, D. O. Breault, Chih-yi Wang, A. F. Hordan, W

Journal:

Mathematics Magazine

Year:

1958

Language:

english

File:

PDF, 627 KB

english, 1958

31

Are the Twin Circles of Archimedes Really Twins?

Journal:

Mathematics Magazine

Year:

1974

Language:

english

File:

PDF, 460 KB

english, 1974

32

Problems and Solutions

Raphael T. Coffman, U. Alfred, M. S. Demos, Leonard Carlitz, Leon Bankoff, D. Rameswar Rao, David L. Silverman, Josef Andersson, Jose Gallego-Diaz, Daniel I. A. Cohen, Jerry L. Pietenpol, Charles W. T

Journal:

Mathematics Magazine

Year:

1963

Language:

english

File:

PDF, 624 KB

english, 1963

33

Problems and Questions

Leo Moser, J. M. Gandhi, Norman Anning, C. S. Ogilvy, Donald A. Steinberg, Huseyin Demir, M. S. Klamkin, B. Keshava R. Pai, B. V. Torgal, M. N. Gopalan, Leon Bankoff, J. M. Howell, Francis A. C. Sevie

Journal:

Mathematics Magazine

Year:

1957

Language:

english

File:

PDF, 685 KB

english, 1957

34

A Property of Triangles

Leon Bankoff and Charles W. Trigg

Journal:

Mathematics Magazine

Year:

1984

Language:

english

File:

PDF, 280 KB

english, 1984

35

Problems and Solutions

Stanley Rabinowitz, Huseyin Demir, Charles W. Trigg, Murray S. Klamkin, Kenneth Fogarty, Erwin Just, Leon Bankoff, Gregory Wulczyn, E. F. Schmeichel, Warren Page, Michael Jones, C. S. Venkataraman, Za

Journal:

Mathematics Magazine

Year:

1972

Language:

english

File:

PDF, 889 KB

english, 1972

36

Problems and Questions

M. S. Klamkin, D. L. Silverman, Leon Bankoff, Huseyin Demir, Edgar Karst, Victor Thebault, D. A. Steinberg, J. M. Howell, Michael J. Pascual, George Bergman, R. G. Buschman, L. Carlitz, Chih-yi Wang,

Journal:

Mathematics Magazine

Year:

1959

Language:

english

File:

PDF, 722 KB

english, 1959

37

The Metamorphosis of the Butterfly Problem

Bankoff, Leon, Boas, Ralph P.

Journal:

Mathematics Magazine

Year:

1987

Language:

english

File:

PDF, 3.39 MB

english, 1987

38

Elementary Problems: E2075-E2084

Conrad, Steven R., Wulczyn, Gregory, Hausner, Alvin, Luthar, R. S., Levine, D. S., Wick, Brian D., Bankoff, Leon, Hsu, Ih-Ching, Just, Erwin, Goode, J. J.

Journal:

American Mathematical Monthly

Year:

1968

Language:

english

File:

PDF, 326 KB

english, 1968

39

Problems and Questions

Jack Winter, W. R. Ransom, Murray S. Klamkin, Pedro A. Piza, John M. Howell, Leon Bankoff, Leo Moser, John R. Hatcher, Francis L. Miksa, W. B. Carver, Daniel Weiner, E. P. Starke, L. A. Ringenberg, C.

Journal:

Mathematics Magazine

Year:

1953

Language:

english

File:

PDF, 655 KB

english, 1953

40

Problems and Questions

Leon Bankoff, D. L. MacKay, L. C. Lay, P. D. Thomas, Dewey Duncan, Malcolm Robertson, John R. Hatcher, H. D. Grossman, E. P. Starke, Norman Anning, H. R. Leifer, R. E. Jackson, Joseph Barnett, Jr., Le

Journal:

Mathematics Magazine

Year:

1952

Language:

english

File:

PDF, 963 KB

english, 1952

41

Problems and Questions

Norman Anning, Stephen Armstrong, Huseyin Demir, Alan Wayne, J. W. Clawson, M. S. Klamkin, Leon Bankoff, Richard K. Guy, Thomas F. Mulcrone, William R. Ransom, P. A. Piza, H. R. Leifer, Chih-yi Wang,

Journal:

Mathematics Magazine

Year:

1956

Language:

english

File:

PDF, 595 KB

english, 1956

42

Problems and Questions

Leon Bankoff, Chih-yi Wang, Norman Anning, C. W. Trigg, V. Thebault, W. E. Byrne, P. A. Piza, Tiny M. Morrow, E. P. Starke, L. D. Grey, D. L. Mac Kay, T. F. Mulcrone, Richard K. Guy, Francis L. Miksa,

Journal:

Mathematics Magazine

Year:

1954

Language:

english

File:

PDF, 680 KB

english, 1954

43

Problems and Questions

H. S. Subba Rao, Joseph Andruskiw, Chih-yi Wang, Norman Anning, J. M. Howell, Leon Bankoff, M. S. Klamkin, Huseyin Demir, Stephen Armstrong, Lawrence A. Ringenberg, C. N. Mills, Richard K. Guy, Maimou

Journal:

Mathematics Magazine

Year:

1956

Language:

english

File:

PDF, 767 KB

english, 1956

44

Four Equal Tritangent Circles

Journal:

Mathematics Magazine

Year:

1964

Language:

english

File:

PDF, 154 KB

english, 1964

45

Problems for Solution: E1306-E1310

J. Gallego-Diaz, Leon Bankoff, I. S. Gal, Martin Gardner and J. L. Brown, Jr.

Journal:

American Mathematical Monthly

Year:

1958

Language:

english

File:

PDF, 209 KB

english, 1958

46

Problems for Solution: E1091-E1095

J. Lambek, N. A. Court, H. S. Wilf, Azriel Rosenfeld, Leon Bankoff and C. W. Trigg

Journal:

American Mathematical Monthly

Year:

1953

Language:

english

File:

PDF, 228 KB

english, 1953

47

Problems and Questions

B. K. Gold's Calculus Class, C. F. White, T. L. Miksa, C. W. Trigg, M. S. Klamkin, V. Thebault, Francis J. Weiss, L. R. Galebaugh, Clinton E. Jones, Leon Bankoff, Norman Anning, M. Morduchow, R. E. Ho

Journal:

Mathematics Magazine

Year:

1954

Language:

english

File:

PDF, 785 KB

english, 1954

48

Problems and Questions

R. B. Herrera, P. A. Piza, George Pate, Leon Bankoff, J. S. Cromelin, Leo Moser, D. L. Silverman, Dewey Duncan, W. H. Quelch, H. H. Berry, J. S. Shipman, Victor Thebault, G. W. Courter, C. D. Smith, J

Journal:

Mathematics Magazine

Year:

1952

Language:

english

File:

PDF, 660 KB

english, 1952

49

Problems and Questions

P. A. Piza, Victor Thebault, Norman Anning, P. D. Thomas, Joseph Barnett, Jr., Leo Moser, William Leong, A. O. Qualley, Leon Bankoff, Wang Shik Ming, Charles McCracken, Jr. and J. M. Howell

Journal:

Mathematics Magazine

Year:

1952

Language:

english

File:

PDF, 493 KB

english, 1952

50

Problems and Questions

Frank C. Gentry, Norman Anning, R. E. Horton, N. A. Court, H. E. Fettis, F. J. Duarte, J. E. Foster, M. S. Klamkin, Robert Bonic, Leon Bankoff, E. P. Starke, D. L. MacKay, Prasert Na Nagara, John Jone

Journal:

Mathematics Magazine

Year:

1953

Language:

english

File:

PDF, 1015 KB

english, 1953

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