Standard — Printable Charts

The file mode creation mask: the nine bits it clears, five arguments that name opposite things — and why umask 022 is not chmod 755

1 114 112 code points in 17 planes: 159 866 characters, 137 468 private, 814 730 free

thirty-six characters: where the version sits, where the variant sits, and what each of the eight versions is made of

nine formats at true scale — and the frame that kept growing after the carrier stopped

who published each standard, when, the names it goes by, and what has to be squeezed

Four steps in a fixed order — and only two of them can change how many fields reach the command

24 letters · names and where science uses them

the first digit of a number: why a one turns up more than six times as often as a nine, and in which sets that is true

how many people it takes for two of them to share a birthday — and the same count for codes and fingerprints

which fractions stop, which run for ever, and how to know the length of the repeat without dividing

what differs inside the cell · and a paper describing each mode

six categories of tornado damage — and the two different winds assigned to them