ATAN2 Function

[msx]

Is it possible to implement this function in GLBasic?.

[kanonet]

It is implemented? Its a bit confusing, but GLBasic's ATAN actually is what is called ATAN2 in other languages.

[msx]

In other languages ATAN<>ATAN2.

This does not happen in GLB?

[kanonet]

ATAN2 is simply a slightly improved ATAN with two parameters, there is no difference besides this. Have a look here: en.wikipedia.org/wiki/Atan2
Usually in programming you need the 2 parameter version (and you can simply replace the 1 parameter version with the 2 one), so Gernot choose to simple only add ATAN2 and confusingly named it ATAN.

BTW. in my libQMATH you find both functions, maybe it helps you if you have a look at the qATAN2 function that I created.

[msx]

Thanks a million.

Much clearer now.