[Axiom-math] repeated series expansion

[Vladimir Skokov]

Dear all,

I have only started to learn axiom. Could you help me please? 

I have an _expression_, say sin(x+y). How could I perform expansion 

withe respect ot x and than to y? 

i.e. 

series(  series(  sin(x+y),x=0  ),y=0   )

thank you in advance 

Yours, Vladimir