Various Functions in C
Overview
C programming language offers a variety of functions that cater to different aspects of programming, ranging from mathematical calculations to character manipulation. This section provides an overview of various functions available in C.
1. Mathematical Functions
a. sqrt
(Square Root):
sqrt
(Square Root):Calculates the square root of a number.
b. pow
(Power):
pow
(Power):Raises a number to the power of another.
c. fabs
(Absolute Value for Floats):
fabs
(Absolute Value for Floats):Returns the absolute value of a floating-point number.
d. ceil
(Ceiling Function):
ceil
(Ceiling Function):Rounds a floating-point number to the smallest integer greater than or equal to it.
e. floor
(Floor Function):
floor
(Floor Function):Rounds a floating-point number to the largest integer less than or equal to it.
2. String Functions
a. strlen
(String Length):
strlen
(String Length):Returns the length of a string.
b. strcpy
(String Copy):
strcpy
(String Copy):Copies the contents of one string to another.
c. strcmp
(String Compare):
strcmp
(String Compare):Compares two strings.
d. strcat
(String Concatenate):
strcat
(String Concatenate):Concatenates two strings.
3. Character Functions
a. isalpha
(Is Alphabetical):
isalpha
(Is Alphabetical):Checks if a character is an alphabet.
b. isdigit
(Is Digit):
isdigit
(Is Digit):Checks if a character is a digit.
c. toupper
(Convert to Uppercase):
toupper
(Convert to Uppercase):Converts a character to uppercase.
d. tolower
(Convert to Lowercase):
tolower
(Convert to Lowercase):Converts a character to lowercase.
4. Input/Output Functions
a. printf
(Print Formatted):
printf
(Print Formatted):Prints formatted output to the console.
b. scanf
(Scan Formatted):
scanf
(Scan Formatted):Reads formatted input from the console.
These are just a few examples of the many functions available in C. Understanding and utilizing these functions is essential for effective C programming.
If you have specific questions or if there are additional topics you'd like to explore, feel free to ask!