FunctionRange

FunctionRange[f,x,y] finds the range of the real function f of the variable x returning the result in terms of y.

FunctionRange[f,x,y,dom] considers f to be a function with arguments and values in the domain dom.

FunctionRange[funs,xvars,yvars,dom] finds the range of the mapping funs of the variables xvars returning the result in terms of yvars.

FunctionRange[{funs,cons},xvars,yvars,dom] finds the range of the mapping funs with the values of xvars restricted by constraints cons.

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