代码搜索结果

% Chapter 8: Example 8.11 % Impulse Invariance Transformation % Butterworth Lowpass Filter Design % % Digital Filter Specifications: wp = 0.2*pi;

% Chapter 8: Example 8.14 % Impulse Invariance Transformation % Elliptic Lowpass Filter Design % % Digital Filter Specifications: wp = 0.2*pi;

% Chapter 8: Example 8.28 % Chebyshev-1 Highpass Filter Design: % Use of the CHEBY1 function % % Digital Filter Specifications: % Type: Chebyshev-I highpass ws =

% Chapter 8: Example 8.13 % Impulse Invariance Transformation % Chebyshev-2 Lowpass Filter Design % % Digital Filter Specifications: wp = 0.2*pi;

% Chapter 8: Example 8.12 % Impulse Invariance Transformation % Chebyshev-1 Lowpass Filter Design % % Digital Filter Specifications: wp = 0.2*pi;

function [db,mag,pha,grd,w] = freqz_m(b,a); % Modified version of freqz subroutine % ------------------------------------ % [db,mag,pha,grd,w] = freqz_m(b,a); % db = Relative magnitude in dB comp

function [sol,val] = gaMichEval(sol,options) val = 21.5 + sol(1) * sin(4*pi*sol(1)) + sol(2)*sin(20*pi*sol(2)); %G=zeros(0); %val = sqrt(sol(1)) * sin(2*sol(1)) + sqrt(sol(1))*cos(5*sol(1))+5;

#include #define pi 3.1415 double gaussian(double x) { double resu; resu=-0.5*x*x; resu=exp(resu); resu=resu/sq

%微积分例1:一元函数求导（diff,gradient) clear;close; x=-2*pi:0.1:2*pi; y=sin(x); dy=diff(y)./diff(x); plot(x,y,x(1:length(x)-1),dy); hold on; yx =gradient(y,x); plot(x,yx,'ro');

clear all; clc; x = -pi:pi/20:pi; y1=2*cos(x)-sin(x).*sin(x); y2=sin(2*x).*cos(x); plot(x,y1,'-.b',x,y2,'r') h = legend('y1','y2',2); gtext('y1'); gtext('y2');