Editing WoW:API tonumber

{{luaapi}}
Attempts to parse the number expressed in a string
 num = tonumber(str[, radix])

== Arguments ==
; str : String/number - this value will be converted to a numeric value.
; radix : Number - An optional argument specifies the base to interpret the numeral. The base may be any integer between 2 and 36, inclusive. In bases above 10, the letter `A´ (in either upper or lower case) represents 10, `B´ represents 11, and so forth, with `Z´ representing 35. In base 10 (the default), the number may have a decimal part, as well as an optional exponent part. In other bases, only unsigned integers are accepted.

== Returns ==
; num : Number/nil - The argument as a numeric value or '''nil''' if the value cannot be converted.

==Examples==
 tonumber("123") -- Returns 123

 tonumber("argqerg")  --Returns nil

 tonumber("argqerg", 36)  --Returns 4294967295

 tonumber("13", 8) --Returns 11

 tonumber ("D", 16) --Returns 13

== Notes ==
* This function always converts ''arg'' into the native number type.
: If you want to convert from one base to another, you'll have to do the math yourself.
* If ''base'' is less than 2 or greater than 36, an error will be thrown ("Base out of range").
* If ''arg'' cannot be converted from ''base'' to decimal, nil will be returned.