(code need for Python Spyder)

Make a 3D surface plot: atomic orbital. The "wave function" of the electron in a hydrogren atom in the quantum state n-3, 1 = 1, m 0 is given by y(z, y)-(6-r)e-r/3 where r = V x2 +y2. Here all distances z, y, r are measured in units of the Bohr radius a0-5.29 10-11 m. (The greek letter (psi) is often used for quantum wave functions Make a 3D surface plot of the function u(x, y) over the range-20