Chapter 5: Number Variable in Python смотреть онлайн

Number Variable in Python: In python we have separate variable type for number. Infact we have more than one variable type only for the number. These are "int", "float" and "complex". Python has capacity to detect the datatype and assign the variable the exact datatype. However you can assign a particular datatype to a variable in case of need. You can change the datatype of variable if it is compatible and authorized.
For Example "myInt = 10"
in this example "myInt" is a variable and I have given a value "10" therefore by default Python will assign the datatype "int" means integer. However if you want to convert it into float or complex then it is possible. Because all int comes under float or complex number.
To convert the data type from int to float, you can use the following syntax
float(myInt)
To convert the data int to complex, you can use the following syntax
complex(myInt)
If you will print the above using the print command, then following result will come.
10.0
(10+0j)
You can also convert float to int as well but it may lose its value for example.
myFloat = 9.4;
print(int(myFloat));
print(complex(myFloat));
In the above example "myFloat" is a variable and the value is 9.4, So the Python will assign automatically the float type to the variable.
But if you will convert it into int and complex then following will be the result.
9 --- after conversion into int
(9.4+0j) --- after conversion into complex
So conversion into int changed the value by dropping .4 from the value.