Here is a quaternion implementation for Mandelbulb. Due to the formula complexity, takes ages to render even if the size is 200x200
Mandelbulb3Dv16{
N....UA....m....w....2....U0AShtAEK7.H5bvWPNTI3ElgrfaBpjqzPVnfjlJc0BzKQepkE3RW.k
................................pYWGHo8/Xz1........A./..................y.2.....
................/ME//....6kVM...82....E2.....IrqizNQX7tD...........c./...w1....U
z.EnAnQD..../..GVf53iSIozAnAnAnAnAyjaNaNaNaNKz1..................y1...sD...../..
.wHnAnQDPTzMS4rMGy1..........U4FWpEfUsfjyEeJWZXfcrnqrDablBaYzC6QPfEfUsfDlToq8o86
yufxg7K1h0WjyK23NnNQX7tj......o60.....................sD..kz0...................
.............................UJRR4.wppN.6OLb/.mRR4.irpN.EVLb/UCSR4..............
................E..........U..6.4/...61...EB....I....U3....3....m....IX1...UiePI
..kI4ydelyjeYFnzTeOgzf8Nos8.1c..zzzz.MQizccZWGyD7EdGkxmWcz1...........k.8.kXWF1.
QvM93P58iz9GMmnWK2zwz0..........ZM1IyDL7O.kjthne8d.kzm0Ju0SpJhyD.m1wnEqe5zP.FcEz
4NqQ.6UkKZMxkayjtodIWOorVyvkhw1ZBGouzKF.8wDJ030.8B6ewXyKUzXbbFpvWtc6.l4zvm1FFj1E
3EU00U5GZ.EBK2Ean0HxzGPFm0nvAI.kddPEmLBlt.2...uBZ.EHVM/.zzFoTu2.cxo7.szDnueM.g5P
D/EzTt6Ul/kF.V1.Qs5crI0.B3W3..bTUSH7.oI6K..ly/uBZ.EHVM/.Mw5crI0.B3W3.kqTUSH7.oI6
K..kz/uBZ.EHVM/....crI0.zzFoTu2.yzngi84.xzZX.45..IaMUELNoJ46YJ46XVa9e/rN..UOkR4.
E....I....E.....I.........kLAxqNoE2...pPrJaQ....................................
...................../........................................zD........kz1.....
...wz.........zD........kz1.....................................................
.....................2.....3....7....2JRVF5IjR5.................................
...............................E........................................kz1.....
...wz.........zD........kz1.....................................................
................................/....E/.........TJ2SkF1F........................
........................................U.2.....................................
................................................................................
..........................................E.....I....A....kLVF4N1/..............
...................................................wz.........zD........kz1.....
................................................................................
.....................................................2.....3....2....wpIX34PdtqN
klKRn/......................................................../E........E.2.....
...2./......../E................................................................
................................................................}