Rounds a number down, to the nearest integer or to the nearest multiple of significance.
| Name | Type | Description |
| arg1 | number | Is the value you want to round. |
| arg2 | number | Is the multiple to which you want to round. |
| arg3 | number | When given and nonzero this function will round towards zero. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.FLOOR_MATH(-5.5, 2, 1));
builder.SaveFile("xlsx", "FLOOR_MATH.xlsx");
builder.CloseFile();