What's the meaning of this pine-script code?

I find this script

smo_Num(mom_Num, Input2, Input3) => 
    smo1_Num = ema(mom_Num, Input2)
    smo2_Num = ema(smo1_Num, Input3)
dsm1_Num = smo_Num(mom_Num, Input2, Input3) 
dsm2_Num = smo_Num(abs(mom_Num), Input2, Input3)    
tsi_Num = 100 * (dsm1_Num / dsm2_Num)   

I'm not so familiar with PineScript and I'm not a developer, I'd like to convert this function in EasyLanguage. I need to fully understand the logic of this simple script.

Can anyone help me?

Thanks