初始數據：
  ia = 10
  ib = -23
  fx =    1.53692000000000010000 
  fy =  -38.67000000000000200000 
  cf = (1.53692,-38.67)

取絕對值運算：
  Abs(ia) = 10
  Abs(ib) = 23
  Abs(fx) = 1.53692
  Abs(fy) = 38.67
  Abs(cf) = 38.7005

取符號運算：
  Sgn(ia) = 1
  Sgn(ib) = -1
  Sgn(fx) = 1
  Sgn(fy) = -1

浮點數比較：
  fx == 1.53692 	 fx =    1.53692000000000010000 

  fy != -38.671 	 fy =  -38.67000000000000200000 

求最小值運算：
  Min(ia, ib) = -23

求最大值運算：
  Max(fx, fy) = 1.53692

打印數組(向量)值：
           1.01            1.02            1.03            2.04 

打印某個指定數組(向量)元素值：
           1.01
           1.02
           1.03
           2.04