Compare calculation

how can i compare a serries of numbers and find the closest match
for eampel:
number1 is string =30 its also the string that we want to macth closest

number2 is string =38
number3 is string =25
number4 is string =21
number5 is string =28
number6 is string =33
number7 is string =59
closest macth woot be = string number 5 compared with string1
Ps the content of the number strings are from input they can be anything



Edited 4 time(s). Last edit at 06/15/2009 09:40PM by Gsmuser.

is this somthing that cant be done?

Hello,

Place the values in an array
Calculate the difference with nbr1 and nbr 2
Remember the difference

In a loop Calculate each other difference (1 and 3, 1 and 4 etc)
If there is a smaller difference than nbr1 and nbr2 then rember the new nbr and the difference.
And so on.

If you compared all differences then you should get the closest nbr.