C++ Math trunc()The function rounds off the given value towards zero and returns the nearest integral value whose magnitude is not greater than the given value. For example: SyntaxSuppose a number is 'x'. Syntax would be : Note: return_type can be float,double or long double.Parameterx: The value that can be float,double or long double. Return valueIt returns a rounded value of x. Example 1Let's see a simple example when the value of x is positive. Output: The value of x is :8.8 Truncated value of x is :8 Example 2Let's see a simple example when the value of x is negative. Output: The value of x is :-3.9 Truncated value of x is:-3
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