Question

matlab中round函数具体用法

Answer 1

调用格式：Y = round(X)

在matlab中round也是一个四舍五入函数.在matlab的命令窗口中输入doc round或者help round即可获得该函数的相关帮助信息.

相关函数：ceil、floor、fix

程序示例　　>>a = [-1.9, -0.2, 3.4, 5.6, 7.0, 2.4+3.6i]

a =

Columns 1 through 4

-1.9000 -0.2000 3.4000 5.6000

Columns 5 through 6

7.0000 2.4000 + 3.6000i

>>round(a)

ans =

Columns 1 through 4

-2.0000 0 3.0000 6.0000

Columns 5 through 6

7.0000 2.0000 + 4.0000i

a =

Columns 1 through 4

-1.9000 -0.2000 3.4000 5.6000

Columns 5 through 6

7.0000 2.4000 + 3.6000i

参考： http://blog.sina.com.cn/s/blog_a4034b2801012o1n.html