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Raspberry Pi 的代码
examp3_39.m
[t,y]=nlbound(@c3fun4,@c3fun3,[0,pi/2],[-1,1],1e-8);
plot(t,y); set(gca,'xlim',[0,pi/2]);
y0=tan(t-pi/4); norm(y(:,1)-y0)
norm(y(end,1)-1)
ex221.m
%********************************************************
%程序：EX221.M
%功能：极坐标绘图函数polar使用实例
%********************************************************
t=0:0.01*pi:2*pi;
zp1597.cpp
//---------------------------------------------------------------------------
#pragma hdrstop
//---------------------------------------------------------------------------
#pragma argsused
#
b77.m
t=0:pi/20:2*pi;
plot(t,sin(t));
xlabel('t=0 to 2pi');
ylabel('sin(t)');
title('0到2pi的正弦曲线');
text(pi/4,sin(pi/4),'\leftarrowsin(t)=0.707');
plotpu.asv
function plotpu(x)
%绘出随机数的功率谱密度函数频域的图形。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
y=gaussianpu(x);
r=correlation(y);
v=fft(r);
v=abs(v);
%j=2*pi/length(v);
%i=0:j:2*pi-j;
plot(i,v);
plotpu.m
function plotpu(x)
%绘出随机数的功率谱密度函数频域的图形。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%y=gaussianpu(x);
%r=correlation(y);
w=fft(x);
w=abs(w);
v=2*pi/length(w);
i=0:v:(2*pi-v);
plot(i,w);
ex221.m
%********************************************************
%程序：EX221.M
%功能：极坐标绘图函数polar使用实例
%********************************************************
t=0:0.01*pi:2*pi;
tinhpi.c
/* Bai tap 1_29 - Tinh so PI voi sai so 0.0001 */
#include
#include
void main()
{
double PI = 1.0, n = 3.0;
int i = 0;
while (1.0/n > 0.0001)
{
if (i%2 == 0
normalize.m
function angles = normalize(angles)
% Normalizes angles to interval (-pi,pi]
%angles = pi - mod(pi-angles, 2*pi);
% Same result, more efficiently:
angles = angles + (2*pi)*floor((pi-angles)/(2
plotpu.asv
function plotpu(x)
%绘出随机数的功率谱密度函数频域的图形。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
y=gaussianpu(x);
r=correlation(y);
v=fft(r);
v=abs(v);
%j=2*pi/length(v);
%i=0:j:2*pi-j;
plot(i,v);