:Զжθ/ظ

ʽ:Duplicate(obj,n)

obj:ΪҲΪű
n:/ظ

˵:1objΪʱ,£Уķʽnݣ2objΪűʱ,൱ԭݺ׷n-1ͬ.

:

(1)
a =
[ 1.00000000000000    2.00000000000000    3.00000000000000
  4.00000000000000    5.00000000000000    6.00000000000000 ]
  
b=Duplicate(a,3)//ϵͳѾa,سִбõa3κ¾b
b =
[ 1.00000000000000    2.00000000000000    3.00000000000000
  4.00000000000000    5.00000000000000    6.00000000000000
  1.00000000000000    2.00000000000000    3.00000000000000
  4.00000000000000    5.00000000000000    6.00000000000000
  1.00000000000000    2.00000000000000    3.00000000000000
  4.00000000000000    5.00000000000000    6.00000000000000 ]

(2)
f = "sin(x)*cos(x)*";fy=Duplicate(f,4)//سfظ4εõ½
fy = "sin(x)*cos(x)*sin(x)*cos(x)*sin(x)*cos(x)*sin(x)*cos(x)*"