\frac{d^{2} Ψ}{d x^{2}} + (\frac{8 π^{2} m}{h^{2}}) (E - V) Ψ = 0

${\frac {d^2 {\Psi}}{d x^2} + \left(\frac {8 {\pi^2} m} {h ^2} \right)(E- V) {\Psi} = 0}$

Error