1、complex函数:创建复数

2、用法说明:

(1)z = complex(x,y) 函数创建复数z,输入的x,y必须同为变量或维数相同、相同数据类型的向量、矩阵或者多维数组。输出的结果跟输入的维数相同,返回值为a+b*i;

(2)y=complex(x) 返回结果为实部为x,所有虚部为0的复数,等价于y=complex(x,0)。

3、实例

>> x = complex(24,56)

x =

  24.0000 +56.0000i

>> x = complex(3:7,6:9)
Error using complex
Input arrays must have the same size.
 
>> x = complex(3:7,1:5)

x =

   3.0000 + 1.0000i   4.0000 + 2.0000i   5.0000 + 3.0000i   6.0000 + 4.0000i   7.0000 + 5.0000i

>> x = complex(rand(3,4),rand(3,4))

x =

   0.1622 + 0.2290i   0.5285 + 0.8258i   0.2630 + 0.0782i   0.7482 + 0.9619i
   0.7943 + 0.9133i   0.1656 + 0.5383i   0.6541 + 0.4427i   0.4505 + 0.0046i
   0.3112 + 0.1524i   0.6020 + 0.9961i   0.6892 + 0.1067i   0.0838 + 0.7749i