The Quintuple Exponential Moving Average indicator is of multiple EMA of EMA which formula is this one:
Pema=8*Ema1-28*Ema2+56*Ema3-70*Ema4+56*Ema5-28*Ema6+8*Ema7-Ema8
Code adapted from the Metatrader5 formula.
Coded by a request in the ProBuilder English support forum.
//PRC_PEMA | indicator
//23.01.2017
//Nicolas @ www.prorealcode.com
//Sharing ProRealTime knowledge
//--- parameters
// period = 14
// method = MOVING AVERAGE TYPE
// ---
Price=customclose
MA1=Average[period,method](Price)
MA2=Average[period,method](MA1)
MA3=Average[period,method](MA2)
MA4=Average[period,method](MA3)
MA5=Average[period,method](MA4)
MA6=Average[period,method](MA5)
MA7=Average[period,method](MA6)
MA8=Average[period,method](MA7)
PEMA=8*MA1-28*MA2+56*MA3-70*MA4+56*MA5-28*MA6+8*MA7-MA8
RETURN PEMA as "Pentuple Exponential Moving Average indicator"