Questions & Help>Questions

How to convert 2000 to 20.00

#mathematics
wlminimal

wlminimal

How to convert 2000 to 20.00

I want to change format 2000 to 20.00
I want to put period “.” at last two digit in number
how can I do this?

7 comments
#mathematics
36 1247 7

Marked As Solved

NobbZ

NobbZ

It looks as if you were searching for a simple division by 100…

7
Post #2

Also Liked

LostKobrakai

LostKobrakai

I’d like to add teh gentle reminder that if you’re dealing with money values (which it always looks like if someone needs two decimal places) you should never use floats, but at least the Decimal library if not a dedicated money handling library.

10
Post #4
OvermindDL1

OvermindDL1

This, exceptionally this, can never be stated enough!

6
Post #5
kip

kip

ex_cldr Core Team

If it is money you’re dealing with then ex_money would let you do the following:

iex> Money.from_integer(2000, :USD)
#Money<:USD, 20.00>

(I am the author)

6
Post #7
crazymevt

crazymevt

2000 / 100.0 |> :erlang.float_to_binary([decimals: 2])

5
Post #3
tallakt

tallakt

Stupid/quick and dirty way of solving this, but avoids some issues wrt rounding and such:

> Regex.replace(~r/(-?\d+)(\d\d)/, "2000", "\\1.\\2")
"20.00"
1
Post #6

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