Generalized power series
Expansions at (z_{1},z_{2})==(0,0)
For the function itself
Expansions at z_{1}==0
For the function itself
Expansions at z_{2}==0
For the function itself
Expansions at z_{1}==1
For the function itself
Expansions at z_{2}==1
For the function itself
Expansions at z_{1}==infinity
For the function itself
Expansions at z_{2}==infinity
For the function itself
