Does basic arithmetic on fractions (including complex one). It reports its answers in the the standard forms as expressions on the stack (ie. '2+3/5' & (13-4*i)/5) while accepting numbers or expressions on the stack as input. There is also a factoring square-root function (ie sqr of '1+35/64' returns '3*\|11/8'). Finally, there are also GCD and FAC(tor) functions. |