Number

The number type is inhabited by real numeric values.[1] Specifically, it has 53 bits of precision,[2] meaning it can accurately represent integral values in the interval , outside of which arithmetic operations will gradually lose precision. This is because the number type is implemented using double-precision floating-point numbers.

Non-numeric values

NaN

NaN, which stands for not a number, is a special value of the number type. In Lua, it is the only value that is not equal to itself.[3] Some invalid operations, such as math.sqrt(-1), return this.

inf

inf, which stands for infinity, is the largest number Lua can represent. It can be obtained by the use of math.huge or 1/0. There also exists -inf, obtained by negating another inf value.

gollark: Language is complicated and comprehending gollariosity in its full glory is difficult.
gollark: Fascinating, but I need to hear it from <@593113791252660224> because <@738361430763372703> could be lying.
gollark: <@593113791252660224> Are you <@738361430763372703>?
gollark: Great, thanks.
gollark: Probably they just reroute specific bits of it when they want to do evilness.

References
  1. Ierusalimschy, Roberto (March 2006). Programming in Lua. p. 29. ISBN 8590379825.
  2. "IEEE Standard for Floating-Point Arithmetic". IEEE Std 754-2008: 1–70. August 2008. doi:10.1109/IEEESTD.2008.4610935.
  3. "Inf And Nan Comparisons". lua-users. 2006-09-30. Retrieved 2018-08-05.
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