
> On Feb 20, 2017, at 4:12 PM, nobody <nobody+lualist@afraberlin.de> wrote:
>
> On 20170221 01:08, Tim Hill wrote:
>> Fortunately, most of the game engines are still on Lua 5.2 and so
>> have math.atan2(), and those on 5.3 mostly to have thrown the
>> necessary switch to retain the old math functions in the 5.3 build.
>> *snip*
>
> It never went away! Just leave off the '2'. :)
>
>> # math.atan (y [, x])
>>
>> Returns the arc tangent of y/x (in radians), but uses the signs of
>> both parameters to find the quadrant of the result. (It also handles
>> correctly the case of x being zero.)
>>
>> The default value for x is 1, so that the call math.atan(y) returns
>> the arc tangent of y.
>>
>>  https://www.lua.org/manual/5.3/manual.html#pdfmath.atan
>
>  nobody
>
Doh! I’d never even noticed that change .. thanks for pointing this out! :)
—Tim