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/* * 文件名 ex_2_3_2.java * 说 明:用双精度浮点数计算圆的面积 */ class ex_2_3_2{ public static void main(String args[]) { double pi,r,a; r = 10.8; // 圆的半径 pi = 3.1416; // 圆周率的近似值 a = pi * r * r; //

//FinalVariable.java class FinalVariable { //常量 final float PI = 3.14f; //成员变量 float fRadius; //成员方法 public float getArea() { return PI*fRadius*fRadius; } //构造方法

/* Driver for routine moment */ #include #include #include "nr.h" #include "nrutil.h" #define PI 3.14159265 #define NPTS 5000 #define NBIN 100 #define NPPNB (NPTS+NBIN)

/* Driver for routine moment */ #include #include #define NRANSI #include "nr.h" #include "nrutil.h" #define PI 3.14159265 #define NPTS 5000 #define NBIN 100 #define NP

/************************************************************************ * * * Copyright (c) 1987,1988 by * * Digital Equipment Corporation, Maynard, MA * * Bull, Franc

Within this directory, each of the file listed below is licensed under the terms given in the file LICENSE-MPL, also in this directory. pi1k.txt pi2k.txt pi5k.txt

function [ColorImage] = CreatColorImageli(Row1,Row2,Periods,RH,GH,BH,a1,a2,a3) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %输入要生成图象的行与列的大小，然后输出一幅RGB上都为正弦条纹的彩色图象 %07年9月29日 qfw

clear%清除内存 f1=300;f2=500;fs1=100;fs2=600;%实际频率 fs=2000;%采样频率 t=1/fs;%采样时钟 wp1=2*f1*pi/fs;%数字滤波器的通带带下限角频率 wp2=2*pi*f2/fs;%数字滤波器的通带上限角频率 ap=3; %带边频率的衰减 ws1=2*pi*fs1/fs;%数字滤波器的下阻带角频率 ws2=2*pi*f

function T=phispan(x,phitype,dilation,uo,a,bord1,bord2,Family,par); % USAGE T=phispan(x,phitype,dilation,uo,a,bord1,bord2) % % This function returns a matrix Tij that contains elements % \phi_

#include #include void main() { int s; float n,t,pi; t=1;pi=0;n=1.0;s=1; while(fabs(t)>1e-6) {pi=pi+t; n=n+2; s=-s; t=s/n; } pi=pi*4; printf("pi=%10.6f\n",pi);