Define Ceil Math
Double ceil double x.
Define ceil math. Otherwise if arg has integer type or the type double ceil is called. The ceil function rounds a number up to the nearest integer if necessary. The ceil function takes a single argument and returns a value of type int. The function is defined in math h header file.
If 2 3 is passed to ceil it will return 3. The smallest integer greater than or equal to the given number. If the argument value is already equal to a mathematical integer then the result is the same as the argument. In mathematics and computer science the floor function is the function that takes as input a real number and gives as output the greatest integer less than or equal to denoted or similarly the ceiling function maps to the least integer greater than or equal to denoted or.
To round a floating point number look at the round function. If arg has type long double ceill is called. Float ceil float x. For example and while.
Because ceil is a static method of math you always use it as math ceil rather than as a method of a math object you created math is not a constructor. Long double ceil long double x. To round a number down to the nearest integer look at the floor function. Round up value rounds x upward returning the smallest integral value that is not less than x.