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50%%% 歌曲

直接输出就行啊 int i=50; cout

A2=lookup(A1,{0,3,5,10,15,20,30;0,30,50,70,80,100,200}%) 单元格格式设成百分数

t = 0:.001:.25;%%%产生时间序列t,隐含采样率f=1/0.001=1000Hz x = sin(2*pi*50*t) + sin(2*pi*120*t);%%产生时域信号,有50Hz和120...

=IF(A1="","",LOOKUP(A1,{3,4,5,7,10,15,20,30,40,50}%,{5,10,15,20,25,30,35,50,60,100}%)) 假设上面数据位于D1:E13单元格区域...

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