Different coordinate system to sketch (x-2y)=sin(pi(x+y))

1. Feb 25, 2004

yanyin

can anyone teach me how to use a different coordinate system to sketch the graph of (x-2y)=sin(pi(x+y)).
i have totally no idea

2. Mar 2, 2004

JonF

By different coordinate do you mean other then Cartesian? Something like polar graphing?