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Raspberry Pi 的代码
p1-12.cpp
#include
const double PI=3.1416; //声明常量(const变量)PI为3.1416
main()
{
//声明3个变量
double r,l,s;
//输入圆的半径
coutr;
//计算圆的周长
p1-100.cpp
#include
#define PI 3.1416
main() {
int i=100;
#if 1
cout
wind.for
subroutine wcos(w,nw,taper)
real w(0:nw-1)
pi=4*atan(1.0)
do i=0,nw-1
w(i)=1
enddo
m=int( (taper/100)*(nw/2) )
do i=0,m-1
w(i)=.5*(1-cos((i+1)*pi/(M+1)))
enddo
do i=nw-
lijian.m
n=1:1024;
x=cos(0.1*2*pi*n);
%tfrsp(x');
%tfrwv(x');
%tfrpwv(x');
tfrcw(x')
%tfrspwv(x');
chap9_7i.m
%Flight Simulator Servo System
clear all;
close all;
J=2;
b=0.5;
kv=2;
kp=15;
kd=6;
f1=(b+kd*kv);
f2=J;
F=1;
A=1;
t=[0:0.001:10]'; %Simulation time
r=A*sin(2*pi*F*t);
dr=2*pi
chap10_5plant.m
%S-function for continuous state equation
function [sys,x0,str,ts]=s_function(t,x,u,flag)
switch flag,
%Initialization
case 0,
[sys,x0,str,ts]=mdlInitializeSizes;
case 1,
sys=mdlDer
chap10_6s.m
function [sys,x0,str,ts] = spacemodel(t,x,u,flag)
switch flag,
case 0,
[sys,x0,str,ts]=mdlInitializeSizes;
case 1,
sys=mdlDerivatives(t,x,u);
case 3,
sys=mdlOutputs(t,x,u);
case
chap10_1s.m
function [sys,x0,str,ts] = spacemodel(t,x,u,flag)
switch flag,
case 0,
[sys,x0,str,ts]=mdlInitializeSizes;
case 3,
sys=mdlOutputs(t,x,u);
case {2,4,9}
sys=[];
otherwise
erro
chap10_5s.m
function [sys,x0,str,ts] = spacemodel(t,x,u,flag)
switch flag,
case 0,
[sys,x0,str,ts]=mdlInitializeSizes;
case 3,
sys=mdlOutputs(t,x,u);
case {2,4,9}
sys=[];
otherwise
erro
chap3_10plot.m
clear all;
close all;
L1=-pi/6;
L2=pi/6;
L=L2-L1;
T=L*1/1000;
x=L1:T:L2;
figure(1);
for i=1:1:3
gs=-[(x+pi/6-(i-1)*pi/6)/(pi/12)].^2;
u=exp(gs);
hold on;
plot(x,u);
end
xlab