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C++ Math isinf()
The function determines whether the number is infinite or not. It can be positive or negative infinite. If the number is infinite, it returns 1 otherwise 0.
Syntax
Suppose a number is ‘x’. Syntax would be:
Parameter
x: It is a floating point value.
Return value
Parameter(x) | Return value |
---|---|
Finite value | Infinite value |
0 | 1 |
Example 1
Let’s see the simple example when the value of x is 1.0/0.0.
Output:
value of x is : inf isinf(x) : 1
In this example, isinf() function determines that the value of x is infinite. Therefore, it returns 1.
Example 2
Let’s see the simple example when the value of x is 4.
Output:
value of x is : 4 isinf(x) : 0
In this example, isinf() function determines that the value of x is finite. Therefore, it returns 0 value.
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