Page 439 - ComputerScience_Class_11

Output

floating value 4.6
1.1

Note: Float can also be scientific numbers with an "e" to indicate the power of 10.

12.2.3 Complex
A complex number is a numeric data type in Python that represents numbers in the form a + bj, where a is the real
part, b is the imaginary part and j (or J) represents the imaginary unit equal to the square root of -1 (√-1). It is used
for advanced mathematical, scientific, engineering and graphical computations.
Syntax of complex is as follows:

variable_name = real_part + imaginary_partj
Program 3: To display a complex number in Python.
Program 3.py

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# Assign a complex value to a variable
x = 3 + 4j
# display the value of x
print("Complex value: ", x)
# Assigning another complex number to variable
y = 5 + 3j
# Display the value of y
print("Complex value: ", y)

Output

Complex value: (3+4j)
Complex value: (5+3j)

12.2.4 Characteristics of Numeric data types in Python
There are some characteristics of numeric data types in Python:
• Support Type Conversion: Numeric values can be converted from one type to another using functions like int(),
float() and complex().
• Used in Mathematical Calculations: Numeric data types are mainly used to perform calculations in programs.
• Do Not Store Multiple Values: A numeric variable stores only a single number at a time.
• Can Be Used in Conditions: Numeric values can be used in if statements and other logical conditions.
• Stored in Memory as Objects: Even numbers are treated as objects in Python.

Note: Numeric type conversion in Python changes a number from one type to another using built-in
functions; int() for integers, float() for decimals and complex() for complex numbers.

Data Types in Python 437