How to Convert A Binary to A Base10 (Decimal) Integer In Elixir?

To convert a binary number to a base 10 (decimal) integer in Elixir, you can use the built-in String.to_integer/2 function. This function takes two arguments - the binary number as a string and the base of the number (which is 2 for binary numbers). Here is an example of how you can convert a binary number to a decimal integer in Elixir:

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binary_number = "1010"
decimal_integer = String.to_integer(binary_number, 2)

IO.puts(decimal_integer)

In this example, the binary number "1010" is converted to the decimal integer 10 using the String.to_integer/2 function with a base of 2. The IO.puts function is then used to output the decimal integer to the console.

This is a simple and effective way to convert binary numbers to decimal integers in Elixir.

What is the formula for converting binary to decimal in Elixir?

In Elixir, you can convert binary to decimal using the Base.decode/2 function. Here is an example:

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binary = "1101"
decimal = Base.decode16!(binary)
IO.puts(decimal)

This will output 13, which is the decimal equivalent of the binary number 1101. The Base.decode/2 function takes two arguments - the binary number as a string and the base of the number system you are converting from (in this case, 2 for binary).

What are the different approaches to converting binary to decimal in Elixir?

There are several different approaches to converting binary to decimal in Elixir:

1. Using the built-in Integer.parse/1 function: This function can be used to parse a binary string and convert it to a decimal number. For example:

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binary = "1101"
decimal = binary
         |> Integer.parse(:binary)
         |> elem(0)

1. Using pattern matching and recursion: This approach involves breaking down the binary number into individual bits and calculating the decimal equivalent recursively. Here is an example implementation:

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defmodule BinaryToDecimal do
  def convert(binary) do
    convert(binary, 0)
  end

  defp convert(<<>>, acc), do: acc
  defp convert(<<bit :: size(1), rest :: binary>>, acc) do
    converted_bit = bit * :math.pow(2, byte_size(rest))
    convert(rest, acc + converted_bit)
  end
end

# Usage
binary = <<1, 1, 0, 1>>
decimal = BinaryToDecimal.convert(binary)

1. Using the :binary.bin_to_list/1 and Enum.reduce/2 functions: This approach involves converting the binary to a list of bits and then iterating over the list to calculate the decimal equivalent. Here is an example implementation:

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binary = <<1, 0, 1, 1>>
decimal = :binary.bin_to_list(binary)
         |> Enum.reverse
         |> Enum.with_index()
         |> Enum.reduce(0, fn {bit, i}, acc -> acc + bit * :math.pow(2, i) end)

How to change binary to decimal in Elixir?

To convert a binary number to a decimal number in Elixir, you can use the :binary.decode_unsigned/1 function from the :binary module. Here is an example of how to convert a binary number to a decimal number:

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binary_number = <<1010::size(4)>>
decimal_number = :binary.decode_unsigned(binary_number)
IO.puts(decimal_number)

In this example, the binary number is 1010 and its decimal equivalent is 10. The :binary.decode_unsigned/1 function is used to convert the binary number to a decimal number.

You can also define a function to convert binary to decimal in Elixir:

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def binary_to_decimal(binary_number) do
  :binary.decode_unsigned(binary_number)
end

binary_number = <<1010::size(4)>>
decimal_number = binary_to_decimal(binary_number)
IO.puts(decimal_number)

This function can be used to convert any binary number to its decimal equivalent by passing the binary number as an argument to the function.