Features: simplified fractions decimal to fraction conversion equations with one solution are properly factored cat tells you how many solutions there are calculates (somewhat accurately) the amount of solutions if the equation is a bi quartic. If the amount of solutions is anything other than 2 and you are solving for a bi quadratic, the calculator will be incorrect. 3 possible errors: -Irrational error: irrational numbers cannot be converted into fractions and cannot be factored cleanly. -No real solutions error: sadly, due to the limitations of scratch's square root, this calculator cannot solve for imaginary solutions. -GCF overflow error: GCF limit is too low to turn a decimal into a fraction. The error provides info on which root cannot be converted.