Shards

Question Codes

Question Shard

Each question I devise is designated its own unique identifier deemed a shard. They look like this:

i24f-hr1
s25cu-dq4

Format

The shard is a case-insensitive alphanumeric string, with a single hyphen and no whitespace. It comprises several identifying fields:

shard fields

fieldnotesinstance
TopicThe mathematical topic.i
YearThe year of creation.24
PurposeThe context(s) under which the problem was created.c
Hyphen for separating parts of the shard.-
InitialsInitials relating to an aspect of the problem.hr
IndexAn integer for counting shards in case collisions occur.1

Topic

Each shard is generally assigned a single topic.

valuemeaningnotes
aarithmetic / algebra
eexponentials / logarithms
fgraph drawing
icomplex numbers
nnumber theory / sequences
pcombinatorics / probability
qcompleting the square / quadratic
rgeometryNeeds to be ASCII-safe so can’t use π :P
sintegrationi was taken by complex numbers, unfortunately.
t
w
omiscellaneous / other

Purpose

A question will often have several of these in its shard.

valuemeaningnotes
ccompetition / event
ffun
ppractice
uunused