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--- syntax:functions:roundxl [2016/08/23 18:09] – dmitry
+++ syntax:functions:roundxl [2021/07/31 21:40] – craigt
@@ Line 1: / Line 1: @@
-===== RoundXl(number, N) =====
+====== RoundXL(number, dec_places) ======
+Category:  Number function
-Rounds a number to N decimal digits using the Excel rounding logic.
+\\
+=====Description=====
+This function rounds //number// to //dec_places// decimal digits using the Excel rounding logic.
-Note: there exist two types of rounding in general -- "Rounding away from zero" (a.k.a symmetric rounding) and "Rounding to the nearest even number" (a.k.a. banker's rounding). This function uses the former, which is also the type of rounding used in Excel. For the standard rounding (the banker's rounding) use [[syntax:functions:round]] function.
+Excel rounding logic rounds a decimal value of 5 or greater //up// to the next nearest value (towards positive infinity) and 4 or less //down// to the next nearest value (towards negative infinity).
-^  Example  ^  Result  ^
+\\
-| roundxl( 5.55, 1 )  |  5.6 |
+=====Arguments=====
-| roundxl( 5.65, 1 )  |  5.7 |
+^Argument^Type^Description^
+|number|Number|The value, usually fractional, to be rounded.|
+|dec_places|Number (positive, >=0)|The number of decimal places to round //number// to.|
+\\
+**Return value type:**  Number
+\\
+=====Remarks=====
+There exists two types of rounding, in general - "Rounding away from zero" (a.k.a. symmetric rounding) and "Rounding to the nearest even number" (a.k.a. banker's rounding).  This function uses the former (symmetric rounding), which is also the type of rounding used in Excel.  For standard rounding (banker's rounding) use [[syntax:functions:round|Round(number, dec_places)]].
-=== See also ===
+Using a //dec_places// value of "0" rounds to the nearest whole number.
-  * [[syntax:functions:floor]]
-  * [[syntax:functions:ceiling]]
+\\
-  * [[syntax:functions:round]]
+=====Examples=====
+  roundxl(5.55, 1) = 5.6
+  roundxl(5.65, 1) = 5.7
+  roundxl(10.434, 2) = 10.43
+  roundxl(20.5456, 3) = 20.546
+\\
+===== See also =====
+  * [[syntax:functions:ceiling|Ceiling(number)]]
+  * [[syntax:functions:floor|Floor(number)]]
+  * [[syntax:functions:round|Round(number, dec_places)]]
+  * [[syntax:functions:truncate|Truncate(number)]]