WoW:USERAPI round - Revision history

Move page script: Move page script moved page USERAPI round to WoW:USERAPI round without leaving a redirect

2023-08-15T04:49:13Z

Move page script moved page USERAPI round to USERAPI round without leaving a redirect

← Older revision

Revision as of 04:49, 15 August 2023

WoWWiki>Egingell: /* Code */ Previous "correction" is incorrect. Check the talk page.

2010-03-03T02:07:01Z

Code: Previous "correction" is incorrect. Check the talk page.

← Older revision		Revision as of 02:07, 3 March 2010
Line 20:		Line 20:
	<pre>function round(number, decimals)		<pre>function round(number, decimals)
	return (("%%.%df"):format(decimals)):format(number)		return (("%%.%df"):format(decimals)):format(number)
	~~end</pre>~~

	~~The above truncates after number of decimals.~~
	~~The below rounds (note the 0+ makes it remove trailing 0's)~~
	~~<pre>function round(number,decimals)~~
	~~return 0+(("%%.%df"):format(decimals)):format(number+.1^(decimals+1)/2)~~
	end</pre>		end</pre>

WoWWiki>MichaelLundRasmussen: /* Code */

2010-03-02T11:25:25Z

Code

← Older revision		Revision as of 11:25, 2 March 2010
Line 20:		Line 20:
	<pre>function round(number, decimals)		<pre>function round(number, decimals)
	return (("%%.%df"):format(decimals)):format(number)		return (("%%.%df"):format(decimals)):format(number)
			end</pre>

			The above truncates after number of decimals.
			The below rounds (note the 0+ makes it remove trailing 0's)
			<pre>function round(number,decimals)
			return 0+(("%%.%df"):format(decimals)):format(number+.1^(decimals+1)/2)
	end</pre>		end</pre>

WoWWiki>Egingell at 08:59, 18 January 2010

2010-01-18T08:59:10Z

← Older revision		Revision as of 08:59, 18 January 2010
Line 13:		Line 13:

	== Example ==		== Example ==
	local number = round(math.pi, 2)		local number = round(math.pi, 3)
	print(number) -- prints 3.14		print(number) -- prints 3.142

	==Code==		==Code==
	<!-- No, no sanity checks are needed. That's the programmers responsibility. -->		<!-- No, no sanity checks are needed. That's the programmers responsibility. -->
	<pre>function round(number, decimals)		<pre>function round(number, decimals)
	return ~~number -~~ (~~number~~ % (~~0.1 ^~~ decimals))		return (("%%.%df"):format(decimals)):format(number)
	end</pre>		end</pre>

			== See Also ==
			* [[truncate]]

	__NOTOC__		__NOTOC__

WoWWiki>Sippeangelo: Wow, the old one was overly complicated.

2010-01-17T00:33:04Z

Wow, the old one was overly complicated.

← Older revision		Revision as of 00:33, 17 January 2010
Line 3:		Line 3:

	'''Round''' a number off to n places.		'''Round''' a number off to n places.
	number = round(~~input~~, n)		number = round(number, decimals)

	== Function Parameters ==		== Function Parameters ==
	=== Arguments ===		=== Arguments ===
	;~~input~~ : Number. The number to round		;number: Number. The number to round.
	;n : Number. Round to this many ~~places. If nil, round to 0~~ places.		;decimals : Number. Round to this many places.
	=== Returns ===		=== Returns ===
	; number : Number. The rounded number.		;number : Number. The rounded number.

	== Example ==		== Example ==
Line 17:		Line 17:

	==Code==		==Code==
	<pre>function round(~~input~~, ~~places~~)		<!-- No, no sanity checks are needed. That's the programmers responsibility. -->
	~~if not places then~~		<pre>function round(number, decimals)
	~~places = 0~~		return number - (number % (0.1 ^ decimals))
	~~end~~
	~~if type(input) == "~~number~~" and type~~(~~places) == "~~number~~" then~~
	~~local pow = 1~~
	~~for i = 1, ceil(places) do~~
	~~pow = pow * 10~~
	~~end~~
	~~return floor~~(~~input * pow +~~ 0.5) ~~/ pow~~
	~~end~~
	end</pre>		end</pre>
	__NOTOC__		__NOTOC__

WoWWiki>Rolandius: bolded title of article

2008-12-16T10:52:06Z

bolded title of article

← Older revision		Revision as of 10:52, 16 December 2008
Line 1:		Line 1:
	{{userfunc}} <!-- Leave this line in! -->		{{userfunc}} <!-- Leave this line in! -->

	Round a number off to n places.
			'''Round''' a number off to n places.
	number = round(input, n)		number = round(input, n)

WoWWiki>Egingell: New page: {{userfunc}} Round a number off to n places. number = round(input, n) == Function Parameters == === Arguments === ;input : Number. The number to round ;n : ...

2008-12-15T05:11:20Z

New page: {{userfunc}}  Round a number off to n places. number = round(input, n) == Function Parameters == === Arguments === ;input : Number. The number to round ;n : ...

New page

{{userfunc}} 

Round a number off to n places.
number = round(input, n)

== Function Parameters ==
=== Arguments ===
;input : Number. The number to round
;n : Number. Round to this many places. If nil, round to 0 places.
=== Returns ===
; number : Number. The rounded number.

== Example ==
local number = round(math.pi, 2)
print(number) -- prints 3.14

==Code==
<pre>function round(input, places)
if not places then
places = 0
end
if type(input) == "number" and type(places) == "number" then
local pow = 1
for i = 1, ceil(places) do
pow = pow * 10
end
return floor(input * pow + 0.5) / pow
end
end</pre>
__NOTOC__