round a number to the nearest integer in csharp

To round a number to the nearest integer in C#, you can use the built-in Math.Round() function. This function takes a double or decimal number as input and returns the rounded result as either a double or decimal depending on the input type.

Here is an example usage:

main.cs
double number = 3.6;
int roundedNumber = (int)Math.Round(number);
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In this example, the variable number holds the value 3.6. The Math.Round() function is called with number as its input. The function returns 4.0 (a double type), which is then cast to an int to get the rounded integer value of 4. The variable roundedNumber now holds the value 4.

Note that the Math.Round() function has additional overloads that allow you to specify the number of digits to round to or choose how to handle rounding ties.