Cross section of 3d mesh plot to 2d plot

i have a 3d mesh plot i need a cross section or a 2d plot at paticular value of x or y i have tried a lot of function but was unable to get the exact cross section or a 2d plot of the 3d mesh. Any help will be highly appreciated. i have attached a picture of my 3d plot. Thanks in advance.

Answer 1

[nagi buaossa]

Hello please if you got the answer could you share it