Author: CodeCapsule

1. Include the Math Library To use math functions, include: #include <math.h> Some functions return double, so you may need %lf in printf. 2. Common C Math Functions Function Description Example sqrt(x) Returns square...

1. What is Function Declaration? A function declaration (also called prototype) tells the compiler about a function’s name, return type, and parameters before its actual definition. It does not contain the function body. Helps...

1. What is Variable Scope? Scope defines the region of a program where a variable can be accessed or modified. Variables in C can be local, global, or static, each with different visibility. 2....

1. What are Function Parameters? Function parameters are values you pass to a function to use inside it. Parameters allow a function to work on different data each time it’s called. Syntax: return_type function_name(data_type...

1. What is a Function in C? A function is a block of code that performs a specific task. Helps in code reusability, modularity, and readability. Functions are called when needed instead of writing...

1. What is a Pointer to Pointer? A pointer to pointer points to a pointer variable, which in turn points to another variable. It’s like two levels of indirection: variable -> value pointer ->...

1. What is Pointer Arithmetic? Pointer arithmetic allows you to move a pointer through memory based on the size of the data type it points to. You can perform arithmetic operations like: Increment: ptr++...

1. Array Name as a Pointer In C, the name of an array is treated as a pointer to its first element. That means:

  numbers → address of the first element (numbers[0])...

1. What is a Pointer? A pointer is a variable that stores the memory address of another variable. Instead of holding a value directly, it holds where the value is stored. Syntax:

 ...

1. What is a Memory Address? Every variable in C is stored at a specific location in memory. The memory address is the location where the variable’s value is stored. You can find the...