<ul><li>Quaternions are an extension of complex numbers and are useful in computer graphics for transformations.</li><li>Creating a custom Quaternion class in Python involves implementing dunder methods for various operations.</li><li>The __init__ method initializes Quaternion variables, checking for valid input types like ints and floats.</li><li>The __str__ method converts Quaternions into readable strings using list concatenation.</li><li>__repr__ method represents Quaternions for easily replicating objects with eval function.</li><li>Arithmetic operations like addition, subtraction, multiplication, and division are implemented using dunder methods.</li><li>Handling different data types like complex numbers, ints, and floats in arithmetic operations requires type checks.</li><li>Additional methods for right hand operations, in-place operators, and comparison operators are implemented.</li><li>Class methods are utilized for static functions like converting to/from ints and floats and creating identity Quaternions.</li><li>Dunder methods simplify development by leveraging built-in operators, reducing additional methods needed for custom classes.</li></ul>

Quaternions: Creating a Class Using Dunder Methods in Python

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