Using Aqua utilities to simplify your work

Aqua comes with a sizeable set of utilities that offer some great functionality that simplifies generating your applications. In this section, we will implement a few utilities that may be useful, particularly when integrating your quantum applications with classical applications. We'll start with a simple converter from decimal into binary:

1. First, we'll import the utils module and convert the decimal number 6 into binary:

   # Import the utils module
   from qiskit.aqua import utils 
   # convert the number 6 from decimal to binary
   binary_value = utils.decimal_to_binary(6, max_num_digits=0)
   print('Binary result: ', binary_value)

   The preceding code will print out the binary result of the value 6:

   Binary result: 110

2. Next, we need to create some random unitary values. This will take the specified dimension value, N, as its argument to create a random N x N unitary matrix. This can be especially useful if you want to apply...