Occasionally, we need to print something on screen. One way to do so is to apply the print() function as shown in the following example:

>>>import math            
>>>print('pi=',math.pi)
pi= 3.141592653589793

At this stage, a new user just applies this format without going into more detail about the print() function.

In Python, the type() function can be used to find out the type of a variable as follows:

>>>pv=100.23
>>>type(pv)
<class 'float'>
>>>n=10
>>>type(n)
<class 'int'>
>>>

From these results we know that pv is of the...