CODEWITHSUNDEEP
luanumbersstorenumeric
user14551306
user14551306

Reputation:

How is the following number stored in lua?

I have this number :

b = 1.324567890123456789

and the question was ask how was it stored in lua? Now when I type print(b), it shows that the end digits are

...1235

Now the question gave me the options of

...12345

or

...12346

or the option of none on the list -- and i was just wondering if anyone could help me solve this?

Upvotes: 1

Views: 372

Answers (1)

lhf
lhf

Reputation: 72312

By default, Lua stores real numbers as double precision floating point values.

print calls tostring, which converts doubles to strings using "%.14g". [1]

Use string.format("%.17g",b) if you want more decimals.

[1] https://www.lua.org/source/5.3/luaconf.h.html#LUA_NUMBER_FMT

Upvotes: 2

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