A317162 Sinuosity of the 26 letters of the alphabet, lettertype Calibri, multiplied by thousand and rounded.

3515, 3570, 2621, 2820, 2425, 1722, 5734, 2226, 1000, 1237, 2159, 1342, 3349, 2696, 2987, 4570, 11862, 5688, 2355, 1551, 3971, 2848, 3353, 2358, 1603, 2060

Offset

1,1

Comments

It appears that the average sinuosity of the letters in the alphabet is 3.14 (Pi), like the supposed average sinuosity of the rivers in the world.

Links

Table of n, a(n) for n=1..26.

Brady Haran and James Grime, Pi me a river, Numberphile video (2014).

Formula

Sinuosity = L / l, where L is the length of the lines that make up the letter, l is the length of the straight line from the beginning to the end of the letter.

Example

In Calibri the letter 'A' is in a rectangle 1 by 0.75, so l = 0.75. The letter A consists of two sloping lines which length is two times square root of (1^2 + 0.375^2) plus a line length 0.5, so L = 2,636. Therefore the sinuosity of A is 3.515 (2.636 divided by 0.75).

Crossrefs

Sequence in context: A273472 A268352 A178871 * A306174 A205071 A263302

Adjacent sequences: A317159 A317160 A317161 * A317163 A317164 A317165

Keyword

nonn,fini,full

Author

Pieter Post, Jul 23 2018

Status

approved