In Lua, what is #INF and #IND?

Question

I\'m fairly new to Lua. While testing I discovered #INF/#IND. However, I can\'t find a good reference that explains it.

What are #INF

Answer 1

Expanding @YuHao already good answer.

Lua does little when converting a number to a string, since it heavily relies on the underlying C library implementation. In fact Lua print implementation calls Lua tostring which in turn (after a series of other calls) uses the lua_number2str macro, which is defined in terms of C sprintf. Thus in the end you see whatever representation for infinities and NaNs the C implementation uses (this may vary according to which compiler was used to compile Lua and which C runtime your application is linked to).