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# How to Get Digits Past Decimal In Elixir?

To get digits past the decimal in Elixir, you can use the `Float.round/2` function along with the `:precision` option. This function rounds a float to a specified number of decimal places.

For example, if you have a float `number` and you want to get the digits up to 2 decimal places, you can use the following code:

 ```1 ``` ```rounded_number = Float.round(number, 2) ```

This will round the `number` to 2 decimal places and store it in the `rounded_number` variable. You can adjust the precision value as needed to get the desired number of decimal places.

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## How to get the integer part of a decimal number in Elixir?

You can get the integer part of a decimal number in Elixir by using the `div` function. Here's an example:

 ```1 2 3 4 ``` ```decimal_number = 5.67 integer_part = div(decimal_number, 1) IO.puts integer_part # Output: 5 ```

In this example, the `div` function is used to divide the decimal number by 1, which effectively removes the decimal part and leaves only the integer part.

## How to convert decimal numbers to binary in Elixir?

Here's a simple implementation that converts a decimal number to binary in Elixir:

 ```1 2 3 4 5 6 7 8 9 ``` ```defmodule Converter do def decimal_to_binary(decimal) when is_integer(decimal) do decimal |> Integer.to_string(2) |> String.to_integer() end end Converter.decimal_to_binary(10) # Output: 1010 ```

You can use the `Integer.to_string/2` function to convert the decimal number to a binary string representation, and then use `String.to_integer/1` to convert the binary string back to an integer.

You can then call the `decimal_to_binary` function with the decimal number you want to convert to binary.

## How to multiply decimal numbers in Elixir?

To multiply decimal numbers in Elixir, you can use the `Kernel.*` function. Here is an example:

 ```1 2 3 4 5 ``` ```num1 = Decimal.new("2.5") num2 = Decimal.new("1.5") result = Kernel.*(num1, num2) IO.puts(result) # Output: 3.75 ```

In this example, we are using the `Decimal.new/1` function to create decimal numbers from strings, and then using the `Kernel.*` function to multiply the two decimal numbers together.

## How to convert decimal numbers to integers in Elixir?

To convert decimal numbers to integers in Elixir, you can use the `trunc/1`, `round/1`, or `floor/1` functions from the `Float` module. Here's an example using `trunc/1`:

 ```1 2 3 ``` ```decimal_number = 5.6 integer_number = trunc(decimal_number) IO.inspect(integer_number) # Output: 5 ```

You can also use `round/1` to round the decimal number to the nearest integer, or `floor/1` to round down to the nearest integer.

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