anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ 4 $begingroup$ That is perfect thanks a bunch! I also posted a similar problem in this article: math.stackexchange.com/thoughts/2135276/… that You could have some insight on? $endgroup$Dengan mendaftar, saya setuju menjadi member dari Red Tab™ System dan menyetujui