logspace()在matlab帮助里的英文注释是这样的：

logspaceGenerate

logarithmically spaced vectors

Syntax

y = logspace(a,b)

y = logspace(a,b,n)

y = logspace(a,pi)

Description

The logspace function generates logarithmically spaced

vectors. Especially useful for creating frequency vectors, it is a

logarithmic equivalent of linspace and the ":" or colon

operator.

y = logspace(a,b) generates a row vector y of 50

logarithmically spaced points between decades 10^a and

10^b.

y = logspace(a,b,n) generates n points between decades

10^a and 10^b.

y = logspace(a,pi) generates the points between 10^a and

pi, which is useful for digital signal processing where frequencies

over this interval go around the unit circle.

Remarks

All the arguments to logspace must be scalars.

翻译成汉语是​

logspace函数生成对数间隔向量

​语句用法

y = logspace(a,b)

y = logspace(a,b,n)

y = logspace(a,pi)

用法详细描述​

​LOGSPACE函数生成对数间隔向量。而且在产生频率向量时格外有用，相当于是个对数形式的linspace函数

​y = logspace(a,b)

生成一个在10^a到10^b之间个数为50的对数行向量。​

y = logspace(a,b,n)​生成一个在10^a到10^b之间个数为n的对数行向量。

eg：logspace(0，1，10)生成的序列是​1.0000

1.2915

1.6681

2.1544

2.7826

3.5938

4.6416

5.99487.7426

10.0000   (即 10^0

10^(1/9)  ........

10^(8/9)  10^(9/9))

​y =

logspace(a,pi) (该函数目前不太清楚，希望可以叫和大家共同交流)