Delphi RoundTo() Function: Rounding Floating-Point Numbers - Explained

The RoundTo function in Delphi is used to round a floating-point number to a specified number of decimal places. The syntax of the RoundTo function is as follows: \n\nRoundTo(Number: Extended; Digit: Integer): Extended;\n\nThe Number parameter is the floating-point number that you want to round. The Digit parameter specifies the number of decimal places to which you want to round the Number. A positive Digit value indicates the number of decimal places to the right of the decimal point, while a negative Digit value indicates the number of digits to the left of the decimal point.\n\nHere's an example usage of the RoundTo function:\n\nvar\n number, roundedNumber: Extended;\nbegin\n number := 3.14159;\n roundedNumber := RoundTo(number, 2);\n ShowMessage(FloatToStr(roundedNumber));\nend;\n\nIn this example, the RoundTo function is called to round the number 3.14159 to 2 decimal places. The resulting roundedNumber will be 3.14, which is displayed in a message box using the FloatToStr function.