Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
在数字滤波器中,信号 (1, 2, 1, 0) 与模板 (1, 1, 0, 0) 通过点积的相关性。(答:3。)
在数字滤波器中,信号 (1, 2, 1, 0) 与模板 (1, 1, 0, 0) 通过点积的相关性。(答:3。)
Natural Language
Math Input
Extended Keyboard