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%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

%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

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

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

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

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

#include /**/ void main() { float PI=3.14159f; int s,r=5,t; s=r*r*PI; printf("\n\n 圆面积为%d\n\n",s); t=85; printf(" s=%f\n",(float)s); printf(" t=%f\n",(double)t); printf

#include /*求圆面积,圆周长*/ #define PI 3.14 void main() { printf("\n"); float r1=1.5,r2; double s1,s2,c1,c2; s1=PI*r1*r1; c1=2*PI*r1; printf("\n 当给出圆半径为1.5时,求得圆面积为%.4f,圆周长为%.4f\n\n",s

real*8 a, pai, pi_ a=1.d-307; print *, a, 1./a; print *, tiny(a), huge(a) b=1.e-39 ; print *, b, 1./b; print *, tiny(b), huge(b) pi =3.14159265358979_8 ; print *, pi ! pi 无双精度定义，仍为单精度。 a =3.

! ------求圆錐体积和表面积------ PROGRAM Example_1_2 REAL :: pi, r, h, v, s pi = 3.141593 PRINT *,'Input radius r and height h ?' READ *, r, h v = pi*h*r**2/3.0 s = pi*r*(r + sqrt(r**2 + h**2))