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| f[x_, y_] := 9 /; 0 Automatic, Filling -> Bottom] How can I create the surface f(x,y)=9,-5 0,y>0 and x^2 + y^2 |
| f[x_] := 1/Sqrt[2 [Pi]] Exp[-(x^2/9)] Plot[f[x], {x, -10, 10}] From here on how can I create the same image |