Mathematics: All Classes: Friday 14.10.05

[charlieeppes.livejournal.com]

Today I was thinking you could all have a look at this page and tell me what it says about the number you picked last time. If you cannot find your number, just pick something else that looks interesting. I expect the Advanced class will be able to to tell me themselves why the numbers they picked are special without any assisstance.




Beginner: Fun with Numbers
1. Wallace Fennel neptune_wallace
2. Barbossa likeguidelines - 7 - 7 is the smallest number of faces of a regular polygon that is not constructible by straightedge and compass.
3. Chloe Sullivan chloe_sullivan - Chloe - 23 - 23 is the smallest number of integer-sided boxes that tile a box so that no two boxes share a common length.
4. Joan Girardi joan_not_jane
5. Faith Lehane _gottahavefaith - 69 - 69 has the property that n2 and n3 together contain each digit once.
6. Maia Rutledge maias_notebook - Maia - 3, 7 -- 3 is the number of spatial dimensions we live in. 7 - 7 is the smallest number of faces of a regular polygon that is not constructible by straightedge and compass.
7. 6 _notanumber


Mediate: Fun with Math
1. Zero Hopeless-Savage swerval_zero - 42 - 42 is the 5th Catalan number.
2. Samuel T. Anders futurebucs_star - 3 is the number of spatial dimensions we live in.
3. Angelus notsouledyet - 1860 -- n/a - Vampire Numbers
4. Lily Evans ___lily_evans_ 7 - 7 is the smallest number of faces of a regular polygon that is not constructible by straightedge and compass.
5. Cally sogothcally - 33, 34, 35 - 33 is the largest number that is not a sum of distinct triangular numbers.
34 is the smallest number with the property that it and its neighbors have the same number of divisors.
35 is the number of hexominoes.
6. Alanna of Trebond threeweapons - 18 - 18 is the only number that is twice the sum of its digits.
7. Kimberly Shaw kimberly_shaw
8. Han Solo 12parseckessel Han - 5 - 5 is the number of Platonic solids.
9. Jack O'Neill 2ls_in_oneill - 4 - 4 is the smallest number of colors sufficient to color all planar maps.
10. Charlie Kawalsky kawalsky - 4 - 4 is the smallest number of colors sufficient to color all planar maps.

Advanced: Practical Application of Math
1. Archie Kennedy actingltcrumpet - 74 - 74 is the number of different non-Hamiltonian polyhedra with minimum number of vertices.
2. Lisa Cuddy lisacuddy - the Hardy-Ramanujan number - I remember once going to see him when he was lying ill at Putney. I had ridden in taxi cab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. "No," he replied, "it is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways."
3. Kitty Pryde phases_of_kitty - e - e represents Euler's number, a transcendental number (approximately equal to 2.71828182846) which is used as the base for natural logarithms
4. Thomasina Coverly miss_thomasina - i represents:
▪ the imaginary unit, a complex number that is the square root of -1
▪ a subscript to denote the ith term (that is, a general term) in a sequence or list
▪ the index to the elements of a vector, written as a subscript after the vector name
▪ the index to the rows of a matrix, written as the first subscript after the matrix name
▪ an index of summation using the sigma notation
5. Broots dorky_broots - e - e represents Euler's number, a transcendental number (approximately equal to 2.71828182846) which is used as the base for natural logarithms



ooc: Hand much better! Yay!