Byakoreshejwe byumwihariko muguhindura uruziga rwa squaring hamwe na kalibibasi, kuzigama ibiciro kubikoresho bya diyama.
Ibice bya kalibrasi byabugenewe bigenewe gukata neza no kugabanura ibintu byinshi. Ibice byemewe mubuzima bwabo burambye bwo gukora, gukoresha ingufu nke, urusaku ruke rwo gukora, ubukana bwiza no gukora neza.