 | Stuart Dodgson Collingwood - Art, Victorian - 1898 - 494 pages
...54°. Dec. 1 7 (F.). — Maggie [one of his sisters], and our nieces Nella and Violet, came to dinner. Dec. 19 (Sun.). — Sat up last night till 4 am, over...me from New York, " to find 3 equal rationalsided rt.-angled A'S." I found two, whose sides are 20, 21, 29; 12, 35, 37 ; but could not find three. Dec.... | |
 | 1900 - 134 pages
...Letters of Lewis Carroll, by SD COLLINGWOOD. (Fisher TJnwin, 1898.) — "Dec. 19th, 1897 (Sunday). Sat up last night till 4 am over a tempting problem sent me from New York — to find three equal rationalsided right-angled triangles. I found two whose sides are 20, 21, 29 ; 12, 35,... | |
 | Henry Ernest Dudeney - Mathematical recreations - 1908 - 226 pages
...respecting which Lewis Carroll says in his diary (see his "Life and Letters" by Collingwood, p. 343), " Sat up last night till 4 am, over a tempting problem, sent me from New York, ' to find three equal rational-sided right-angled triangles.' I found two but could not find three ! " The following... | |
 | Lewis Carroll, Edward Wakeling - Games & Activities - 1995 - 122 pages
...mathematical problem from New York. Virtually the last entry in his diary, dated 19 December 1897, reads: "Sat up last night till 4 am, over a tempting problem, sent me from New York, ro find three equal rational -sided right-angles triangles. I found two, whnae sides are 20, 21, 29;... | |
 | Martin Gardner - Mathematics - 1998 - 178 pages
...to recreational mathematicians and word play enthusiasts. [21] On December 19, 1898, Carroll wrote: Sat up last night till 4 am, over a tempting problem, sent me from New York, 'to find three equal rational-sided rightangled triangles'. I found two, whose sides are 20, 21, 29; 12, 35,... | |
 | Edinburgh Mathematical Society - Electronic journals - 1906 - 494 pages
...Meeting, 8th December 1905. DC M'lNTOSH, Esq., MA, President, in the Chair. A Problem of Lewis Carroll's, and the rational solutions of a Diophantine Cubic....me from New York, ' to find 3 equal rational-sided rt.-angled AV I found two, whose sides are 20, 21, 29 ; 12, 35, 37 ; but could not find three.' (v.... | |
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Dec. 19 (Sun.). — Sat up last night till 4 am, over a tempting problem, sent me from New York, " to find 3 equal rationalsided rt.-angled A'S." I found two, whose sides are 20, 21, 29; 12, 35, 37 ; but could not find three. 