smooth scale - FOV

[LightQ]

Hi.
Can anyone explain how the "smooth scale - FOV" function works ? 

[admin]

flSmooth = flSmooth - ((flFOV * (flSmooth / cvars::weapons[g_Weapon->m_iWeaponID].aim_fov) * cvars::weapons[g_Weapon->m_iWeaponID].aim_smooth_scale_fov) / 100.f);