c语言编程锯齿波,周期矩形波周期锯齿波周期三角波,C语言程序.doc

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周期矩形波的C语言代码

#include

#include

#include

#include

#define pi 3.1415926

#define E 2

#define T1 2

double function(double t);

double sum();

double draw();

double function(double t)

{

double x,s,w,m;

intn,k;

w=2*pi/T1;

s=0;

for(n=1;n<=200;n++)

{

k=pow(-1,n-1);

x=cos((2*n-1)*w*t)/(2*n-1)*k;

s=x+s;

}

m=s*2*E/pi;

return(m);

}

void check_initialize()

{

int driver,mode;

detectgraph(&driver,&mode);

initgraph(&driver,&mode,"..\\bgi");}

double sum()

{

double c,t,m,x[301],s[300];

int i,g,y,j;

x[0]=0;

for(i=1;i<=200;i++)

{ setcolor(5);

x[i]=x[i-1]+0.02;

c=x[i];

s[i]=fun