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. Obtuse calculations are available for inputs:-ABX, BCY, CZA, BCX, CAY, ACX, CBZ, ABH, ACH and BCH. Calculations for ABZ, ABC and ABY are not possible. All dimensions are calculated to +/-