How do I make different ways to round number in Delphi

In Delphi, you can use the following functions to round a number to the nearest integer:

• Round: This function rounds a number to the nearest integer. If the fractional part of the number is exactly 0.5, the function will round to the nearest even integer. For example, Round(3.5) returns 4, and Round(4.5) returns 4.
• Trunc: This function truncates a number to the nearest integer. If the number is positive, it rounds down to the nearest integer. If the number is negative, it rounds up to the nearest integer. For example, Trunc(3.5) returns 3, and Trunc(-3.5) returns -3.
• Int: This function is similar to Trunc, but it returns the integer value as a LongInt type rather than as a Double type.

You can also use the System.Math.Round function from the System unit to round a number to a specific number of decimal places. This function takes a number and the number of decimal places to round to as arguments, and returns the rounded number.

Here is an example of how to use the System.Math.Round function to round a number to two decimal places: