main index
P00: frame around
P01: olicognography
P03: infrastructures
wayout:contact
wifinetworking
moodsectors
entropyneguentropy
functionsangletrig.
electricityformula
drillingformulas
geometricsimilarity
genet.sign.netw.ana
elect.amplif.
businesscycles
magneticformula
unitcircleangles
