计算下列卷积和[tex=7.357x1.357]I7a0PHsrNEvRGWFJd/K9lPWtVdrR2SbmNNydccffnCI=[/tex]。[tex=12.286x1.5]edRbDlP0JOhsV1G6tYzXZhS2HCSy89QqigiRdDK2/2dR0QTGuem772s/JU5oSy2TApn2yPKS+vm32htGk+wjSA==[/tex]
举一反三
- 计算下列卷积和[tex=7.357x1.357]I7a0PHsrNEvRGWFJd/K9lPWtVdrR2SbmNNydccffnCI=[/tex]。[tex=14.357x1.5]edRbDlP0JOhsV1G6tYzXZhS2HCSy89QqigiRdDK2/2dR0QTGuem772s/JU5oSy2TWNVllIuaPr8WXkVSVnq8vQ==[/tex]
- 计算下列卷积和[tex=7.357x1.357]I7a0PHsrNEvRGWFJd/K9lPWtVdrR2SbmNNydccffnCI=[/tex]。[tex=11.5x1.5]/ng+TBa6n72QxH7VX07xSsLKRxuCH4/bBG2EMAVfxErBjcSddMIfBRitKeLMFZ+p+qHyfiHbimV0mSeK722UrA==[/tex]
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
- 阅读以下代码，x=[0 1 0 2 0 3 0 4];for k=1:8if x(k)==0 x(k)=k;elsex(k)=2*k+1;endend回答：x(2)=______ ，x(5)=______
- 采用基2时间抽取FFT算法流图计算8点序列的DFT，第一级的数据顺序为 A: x[0],x[2],x[4],x[6],x[1],x[3],x[5],x[7] B: x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7] C: x[0],x[4],x[2],x[6],x[1],x[5],x[3],x[7] D: x[0],x[2],x[1],x[3],x[4],x[6],x[5],x[7]