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234Addition and Subtraction Operators
235Multiplication and Division Operators
236The Remainder Operator (%)
237Exponentiation Operator (**)
238Unary Plus and Negation
239Increment and Decrement Operators
240Operator Overloading: The + String Caveat
241Division by Zero and Infinity
242NaN in Arithmetic Operations
243Floating-Point Precision in Arithmetic
244Practical Arithmetic Patterns
245Basic Assignment with =
246Addition Assignment (+=)
247Subtraction, Multiplication, and Division Assignment
248Remainder and Exponentiation Assignment
249Logical Assignment Operators
250Bitwise Assignment Operators
251Assignment Returns the Assigned Value
252Common Assignment Patterns and Pitfalls
253What Are Bitwise Operators?
254The Binary Number System Refresher
255Bitwise AND (&)
256Bitwise OR (|)
257Bitwise XOR (^)
258Bitwise NOT (~)
259Left Shift (<<)
260Sign-Propagating Right Shift (>>)
261Zero-Fill Right Shift (>>>)
262Common Bitwise Patterns
263Bitwise Operators and Type Coercion
264When to Use Bitwise Operators
265What is Operator Precedence?
266Precedence Levels Overview
267Multiplication Before Addition
268Comparison vs Logical Operators
269Assignment Has Lowest Precedence
270Using Parentheses to Override Precedence
271Associativity: Left-to-Right vs Right-to-Left
272Common Precedence Pitfalls
273When to Rely on Precedence vs Parentheses

234Addition and Subtraction Operators
235Multiplication and Division Operators
236The Remainder Operator (%)
237Exponentiation Operator (**)
238Unary Plus and Negation
239Increment and Decrement Operators
240Operator Overloading: The + String Caveat
241Division by Zero and Infinity
242NaN in Arithmetic Operations
243Floating-Point Precision in Arithmetic
244Practical Arithmetic Patterns
245Basic Assignment with =
246Addition Assignment (+=)
247Subtraction, Multiplication, and Division Assignment
248Remainder and Exponentiation Assignment
249Logical Assignment Operators
250Bitwise Assignment Operators
251Assignment Returns the Assigned Value
252Common Assignment Patterns and Pitfalls
253What Are Bitwise Operators?
254The Binary Number System Refresher
255Bitwise AND (&)
256Bitwise OR (|)
257Bitwise XOR (^)
258Bitwise NOT (~)
259Left Shift (<<)
260Sign-Propagating Right Shift (>>)
261Zero-Fill Right Shift (>>>)
262Common Bitwise Patterns
263Bitwise Operators and Type Coercion
264When to Use Bitwise Operators
265What is Operator Precedence?
266Precedence Levels Overview
267Multiplication Before Addition
268Comparison vs Logical Operators
269Assignment Has Lowest Precedence
270Using Parentheses to Override Precedence
271Associativity: Left-to-Right vs Right-to-Left
272Common Precedence Pitfalls
273When to Rely on Precedence vs Parentheses

Lesson 242 of 2,723·7. Arithmetic and OperatorsPro lesson

NaN in Arithmetic Operations

Learn how invalid arithmetic like 0/0 or 'text' * 2 produces NaN, and how NaN propagates through calculations.

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