Right-angle calculations are available for inputs: - AB, AC, AX, BC, BX and CX. Isosceles calculations are available for inputs: - ABX, BCY, ACZ, BCX, CAY, YBA, ZCB, ABH, ACH and BCH. Calculations for ABZ and XAC are not possible at this time. Calculations are possible for ABC, if C and B are of equal length.