短語詞組短語irrational real number 無理實數irrational rotation number 無理轉數irrational l number 無理數algebraic irrational number 代數無理數irrationale Zahl irrational number 無理數negative irrational number 負無理數power with irrational number 無理指數冪irreducible quadratic irrational number 不可約二次無理數positive irrational number 正無理數 返回 irrational number