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: I'm working on rewriting C in Rust so I can do this better right now.
gollark: Your entry is in C? I knew it.
gollark: Phase φ:
gollark: Interesting.
gollark: Gollariosity is fairly obvious and if your scoring system can't handle it that is your fault.

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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