Arithmetic Operators and Type Casting in C (Explained)

Arithmetic Operators and Type Casting in C (Explained)

Introduction In our last chapter, we learned how to read data from a user using scanf . But raw data is useless unless we process it. If a user inputs their birth year, we need to subtract it from the current year to find their age. If they input their salary, we need to multiply it by a tax rate. To perform these mathematical calculations, C provides a robust set of Arithmetic Operators . However, math in programming is slightly different from math in high school. The compiler follows very strict rules regarding data types. If you try to divide two integers, the computer might chop off your decimals entirely! In this chapter, we will master the five core math operators, discover the secret of the Modulo operator, and learn how to force the compiler to behave using Type Casting . The Basic Arithmetic Operators C provides five fundamental arithmetic operators that form the basis of all mathematical software logic. Addition ( + ): Adds two values together. (e.g., 5 + 2 results in 7) Subtraction ( - )…