# Wave function

$i\hbar\frac{\partial}{\partial t} \Psi(\mathbf{x},\,t)=\hat H \Psi(\mathbf{x},\,t)$
where i is the imaginary number, ψ (x,t) is the wave function, ħ is the reduced Planck constant, t is time, x is position in space, Ĥ is a mathematical object known as the Hamilton operator. The reader will note that the symbol $\frac{\partial}{\partial t}$ denotes that the partial derivative of the wave function is being taken.