RootOf(formula_11> evalf(%);
求解方程和不等式.根据formula_12，寻找formula_13的所有整数解。答案：formula_14
矩阵与行列式.计算矩阵的行列式。答案：formula_16with(VectorCalculus);w:=Wronskian([1,x,x^3+x-1],x)Matrix(3, 3, {(1, 1) = 1, (1, 2) = x, (1, 3) = x^3+x-1,