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function [Xk]=dft(xn,N) n=[0:1:N-1]; k=[0:1:N-1]; WN=exp(-j*2*pi/N); nk=n'*k; WNnk=WN.^nk; Xk=xn*WNnk;

n=0:15; x1=2*cos(2*pi*10*n); stem(n,x1); figure; y=dtft(x1,n,100)

program ural1192; const g=10; pi=3.1415926535; var v:longint; a:byte; k:real; begin readln(v,a,k); writeln(v*v*sin(a*pi/90)/g/(1-1/k):0:2); end.

program ural1341; const c=2*pi*6400; var x,y,l,t:extended; begin read(x,y,l); y:=y+l/(c*cos(x*pi/180+l/c*2*pi))*360-l/(c*cos(x*pi/180))*360; y:=y-trunc(y/360)*360; if y>180 then y

function w_black = Blackman(M); % M-point Blackman window % ----------------------- % w_black = Blackman(M); % M1 = M-1; m = [0:1:M1]; w_black = abs(0.42 - 0.5*cos(2*pi*m'/(M1)) + 0.08*cos(4*

% Chapter 7 Example 7.25 % Highpass filter design using PM algorithm % ws = 0.6*pi; wp = 0.75*pi; Rp = 0.5; As = 50; delta1 = (10^(Rp/20)-1)/(10^(Rp/20)+1); delta2 = (1+delta1)*(10^(-As

% Chapter 7: Example 7.14 % Freq. Samp. Tech.: Lowpass,Naive method % M = 20; alpha = (M-1)/2; l = 0:M-1; wl = (2*pi/M)*l; Hrs = [1,1,1,zeros(1,15),1,1]; Hdr = [1,1,0,0]; wdl = [0,0.25

% Chapter 7 Example 7.26 % Staircase filter design using PM algorithm % w1 = 0; w2 = 0.3*pi; delta1 = 0.01; w3 = 0.4*pi; w4 = 0.7*pi; delta2 = 0.005; w5 = 0.8*pi; w6 = pi; delta3 = 0.00

% Chapter 07: Example 7.10 Bandpass filter design - Blackman window % ws1 = 0.2*pi; wp1 = 0.35*pi; wp2 = 0.65*pi; ws2 = 0.8*pi; As = 60; tr_width = min((wp1-ws1),(ws2-wp2)) M = ceil(11*pi/tr_wid

% Chapter 7 Example 7.24 % Bandpass filter design using PM algorithm % ws1 = 0.2*pi; wp1 = 0.35*pi; wp2 = 0.65*pi; ws2 = 0.8*pi; Rp = 1.0; As = 60; delta1 = (10^(Rp/20)-1)/(10^(Rp/20)+1