I-Calculator yokubala izikhala zokwenza i-arch
R1 - Ingaba engaphakathi le-arch.
R2 - Irediyasi engaphandle ye-arch.
S - Inani lamasegmenti we-arch.
U - Umkhakha engela yombuthano.
Izici.
Ukubalwa kosayizi nenombolo yezingxenye zokwenziwa kwe-arch yokhuni.