hello

i was trying to calculate a derivative in wolfram : wolframalpha.com/input/… it is giving me Minput, Moutput in it. What does it mean?

@NV-US It means it is a bug.

The correct input should be

differentiate f(x, y, z) = {sin(x), cos(y), tan(z)}

for WA but it still gives the internal symbols. Report it.

@CarlWoll can probably also pass the message on, in case reporting it doesn't work.

@halirutan thank you. i will.

@Szabolcs do you happen to know if IGraphM has any functionality to find a proper vertex coloring of a graph?

@Juho No, at this point it doesn't. I thought about implementing something basic like Brélaz, but haven't gotten to it yet.

@Szabolcs I'd be super interested in an implementation, and tbh IGraphM is an excellent addition

it has provided me with a lot of fun + some actual useful stuff for work too :-)

I noticed the github page, and I should have a look if I could be of help too

I know quite a bit about algorithms in general (and graph coloring), but I'm far from an expert in Mathematica

@Szabolcs so let me also say this explicitly too: thanks a lot for your work to provide the package! :-)

Can anybody upvote here so that the OP has a minimum 20 points reputation ? (20 points is the minimum to discuss in a chatroom.)

@andre Sure, done

OK thank. He don't need more.