C++ Math floor() Function

C++ Math floor() Function with tutorial for beginners and professionals with examples on isgreaterequal(), less(), islessequal(), islessgreater(), isunordered(), exp(), frexp(), ldexp(), log(), log10(), modf(), exp2(), expm1(), log1p(), log2(), logb(), scalbn(), scalbln() etc.

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C++ Math floor()

It rounds the value to the nearest integer which is not greater than the given value.

For example:

floor(8.2)=8.0;
floor(-8.8)=-9.0;

Syntax

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

double floor(double x);

Parameter

x : It is the value that rounds to the nearest integer.

Return value

It returns the value that round to the nearest integer not greater than x.

Example 1

Let's see a simple example by considering a positive value.

#include 
#include
using namespace std;
int main()
{
 float x=7.8;
 std::cout << "Initial value of x is : " << x<

Output:

Initial value of x is : 7.8
Now, the value of x is :7

Example 2

Let's see a simple example by considering a negative value.

#include 
#include
using namespace std;
int main()
{
 float x=-10.2;
 std::cout << "Initial value of x is : " << x<

Output:

Initial value of x is : -10.2
Now, the value of x is :-11

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