The complex data type is used to represent complex numbers.

A complex number is written in the form a + bj.

• a = Real Part
• b = Imaginary Part
• j = Imaginary Unit (√-1)

Part	Description
a	Real Part
b	Imaginary Part
j	Imaginary Unit (√-1)

The real part of a complex number can be represented using different number systems.

• Decimal
• Binary
• Octal
• Hexadecimal

The imaginary part must always be written in decimal form.

Binary, octal, and hexadecimal values are not allowed in the imaginary part.

Python supports arithmetic operations on complex numbers.

Python provides two built-in attributes for complex numbers.

Attribute	Purpose
real	Returns the real part.
imag	Returns the imaginary part.

The type() function returns the data type of a value.

No output captured.

For complex numbers:

j² = -1

Complex numbers are commonly used in:

• Scientific Applications
• Electrical Engineering
• Electronics
• Signal Processing
• Electrical Circuits
• Mathematical Calculations

Data Type	Example	Description
int	10	Whole numbers
float	10.5	Decimal numbers
complex	10+5j	Complex numbers

• Complex numbers are immutable.
• The real part supports decimal, binary, octal, and hexadecimal values.
• The imaginary part supports only decimal values.
• Python supports arithmetic operations on complex numbers.
• Use real and imag to access different parts of a complex number.

• The complex data type represents complex numbers.
• A complex number is written in the form a + bj.
• The real part can use different number systems.
• The imaginary part must always be in decimal form.
• Use type() to check the data type.
• Use real and imag to access the real and imaginary parts.

Feature	Description
Data Type	complex
Purpose	Represents complex numbers
Format	a + bj
Real Part	Supports decimal, binary, octal, and hexadecimal
Imaginary Part	Decimal only
Attributes	real, imag
Mutable	No (Immutable)