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C++ Math lrint()

The function rounds off the given value using current rounding mode and returns the value of type long int.


Suppose a number is 'x'. Syntax would be:


x: The value that can be float, double or long double.

Return value

It returns the rounded value of x and the return type of the value is long int.

Example 1

Let's see a simple example.


Enter the value which you want to round : 7.8

Name of the methods are :
1. Rounding downwards
2. Rounding upwards
3. Rounding towards zero
4. Rounding to the nearest
Enter the number of rounding method : 1

Rounding downwards,value is :7

Next TopicC++ Math Functions

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