Barycentre is closer to (a+b)/2
Barycentre is closer to (a+b)/2

mockingbirdnest/Principia,pleroy/Principia,mockingbirdnest/Principia,mockingbirdnest/Principia,pleroy/Principia,mockingbirdnest/Principia,pleroy/Principia,pleroy/Principia