Anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ 4 $begingroup$ That's best thanks a bunch! I also posted an analogous problem here: math.stackexchange.com/inquiries/2135276/… that You could have some insight on? $endgroup$ The Levi-Civita image is most frequently used in three and four Proportions, also to some extent in two https://levis4d72202.prublogger.com/profile