I’m passing a string to decimal.new() and instead of a float it’s returning some data type that not allows me to do aritmetic expressions def get_USD_amount_basedOn_BRL(brl_amount) do {_status_code, brl_usd_price_str} = get_brl_usd() brl_usd_price = Decimal.new(brl_usd_price_str) IO.in…

Decimal.new/1 returns a Decimal struct. You need to use the Decimal module to do arithmetic operations. iex(3)> d1 = Decimal.new("5.5623") Decimal.new("5.5623") iex(4)> d2 = Decimal.new("3.12") Decimal.new("3.12") iex(5)> Decimal.mult(d1, d2) Decimal.new("17.354376") iex(6)> Decimal.mult(d1, d2) |> …

Thanks! and it is possible to turn the final data after all the operations into a normal decimal number?

Yes. The Decimal module has got functions to convert the result into integers, floats and strings. Often you don’t have to convert it back to a float or other numbers but just to strings for the presentation layer. EDIT: Some exampels iex(11)> Decimal.to_string(d1) "5.5623" iex(12)> Decimal.to_fl…

Elixir Programming Language Forum

Decimal not returning a number

Questions & Help Questions

jswanner August 23, 2024, 2:21am 5

DecimalEnv can make it less verbose to deal with decimal arithmetic