i have a problem to plotting something i have a code but code is so complex that i didnt bring that code
i just uploaded the picture the situation that what i want it
i have a code that shows in 1 region when plotting figure shows to quarter region
but what i want it is to full region like this picture
,what i want it is to shown origin and symmetryed region at the same figure
symmetry x axis ,y axis
how can do I? what function or what command i should input?