solving ODE equations in matlab

I need help to solve this equation in matlab:

a * dc(x,,y, t)/dt + b * dC(x,,y,t)/dx - e * d2c(x,y,t)/dx2 - h * d2c(x,y,t)/dy2 = k + f *c(x,y,t)

with this contraints: c(x,y,0)=0 c(0,y,t)= constant c(x,0,t)=0

[Jan]

What does "dc(x,,y,t)" mean - especially the two commas?

What is your question? What did you try already?