main index
P00: frame around
P01: olicognography
P03: infrastructures
wayout:contact
squarecurvekinds
geometricinvariants
numericalsetlogic
unitcircleangles
tetrah.symmetries
polyhedronproperties
geometricsimilarity
oddsidedpolygon
Pascaltriangle
cubicpolynomialroots
algebraicsimilarity
unitconstruction
