// Workers AI · dad joke modeWhy was C0 cold? It had 0 degrees.

C0 or C00 has several uses including:

C0, the IATA code for Centralwings airline
C0 and C1 control codes
a CPU power state in the Advanced Configuration and Power Interface
an alternate name for crt0, a library used in the startup of a C program
in mathematics:
- the differentiability class C⁰
- a C₀-semigroup, a strongly continuous one-parameter semigroup
- c₀, the Banach space of real sequences that converge to zero
- a C₀ field is an algebraically closed field
in physics, c₀, the speed of light in vacuum
%C0, the URL-encoded version of the character "À"
C0, a note-octave in music
an ISO 216 paper format size
C00, the ICD-10 code for oral cancer
C° could refer to:
- An abbreviation for Celsius degrees
- In chemistry, the standard state for solute concentration

See also