w****j
发帖数: 237 | 1 Hi, everyone. I have a simple question about the properties of periodic
function.
If f1(x) is a function with period T1, f2(x) is with period T2, so how about
f1(x)*f2(x) and f1(x)+f2(x)?
Any information or references will be appreciated,
Thanks~~ | c*******d
发帖数: 255 | 2 least common multiple
最小公倍数，前文下面那个是定义
with
【在 w****j 的大作中提到】
: Hi, everyone. I have a simple question about the properties of periodic
: function.
: If f1(x) is a function with period T1, f2(x) is with period T2, so how about
: f1(x)*f2(x) and f1(x)+f2(x)?
: Any information or references will be appreciated,
: Thanks~~
| w****j
发帖数: 237 | 3 Hi, connected, what is l.c.m. ??? I am sorry that I am not quite familiar with
the terms in Math...
【在 c*******d 的大作中提到】
: least common multiple
: 最小公倍数，前文下面那个是定义
:
: with
| c*******d
发帖数: 255 | 4 l.c.m.(T1,T2)?
or, min{n*T1: n*T1/T2 is a integer, where n is a positive integer}
【在 w****j 的大作中提到】
: Hi, everyone. I have a simple question about the properties of periodic
: function.
: If f1(x) is a function with period T1, f2(x) is with period T2, so how about
: f1(x)*f2(x) and f1(x)+f2(x)?
: Any information or references will be appreciated,
: Thanks~~
| t**********r
发帖数: 256 | 5 都表示成fouier级数，然后化简不出来的就没戏。
工程上常用T1,T2两个周期混合的三角级数，
有专门的研究文章，你google看就知道了。
【在 w****j 的大作中提到】
: Hi, everyone. I have a simple question about the properties of periodic
: function.
: If f1(x) is a function with period T1, f2(x) is with period T2, so how about
: f1(x)*f2(x) and f1(x)+f2(x)?
: Any information or references will be appreciated,
: Thanks~~
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