int_diff_sp

lstchain.mc.mc.int_diff_sp(emin, emax, sp_idx, e0)
Parameters:
emin: `float` minimum energy
emax: `float` maximum energy
sp_idx:`float` spectral index of the power-law distribution
e0: `float` normalization energy
Returns:
integral_e: float energy integral
TODO: Introduce any spectral form