@dharr first of all thank you sir for sending laplace but in  this you used built in commands. what i want that is procedure of laplace PDE... 

i have the procedure of laplace ODE, need laplace PDE procedure.

you can see that i solved ODe by this code but i can't solve PDe,,,,i'm actually trying to solve PDe in which i need help...

 pde_elziki_(1).mw

i upload this link,Elziki_transforms.mw, in which my procedure for elzaki  is not working for derivatives? .please guid me.

@Carl Love  Respected sir thank you for your kind reply but it is still not working. I have uploaded the maple file in the original post kindly check it