-
/*
* EULER S ALGORITHM 5.1
*
* TO APPROXIMATE THE SOLUTION OF THE INITIAL VALUE PROBLEM:
* Y = F(T,Y), A<=T<=B, Y(A) = ALPHA,
* AT N+1 EQUALLY SPACED POINTS IN THE INTERVAL [A,B].
*
* INPUT: ENDPOINTS A,B INITIAL CONDITION ALPHA INTEGER N.
*
* OUTPUT: APPROXIMATION W TO Y AT THE (N+1) VALUES OF T.
*/
標(biāo)簽：
APPROXIMATE
ALGORITHM
THE
SOLUTION
上傳時(shí)間：
2015-08-20
上傳用戶：zhangliming420
-
Trie樹既可用于一般的字典搜索，也可用于索引查找。對(duì)于給定的一個(gè)字符串a(chǎn)1,a2,a3,...,an.則采用TRIE樹搜索經(jīng)過n次搜索即可完成一次查找。不過好像還是沒有B樹的搜索效率高，B樹搜索算法復(fù)雜度為logt(n+1/2).當(dāng)t趨向大，搜索效率變得高效。怪不得DB2的訪問內(nèi)存設(shè)置為虛擬內(nèi)存的一個(gè)PAGE大小，而且?guī)袚Q頻率降低，無需經(jīng)常的PAGE切換。
標(biāo)簽：
Trie
樹
搜索
上傳時(shí)間：
2016-07-06
上傳用戶：sk5201314
-
an analysis software with souce code for the time series with methods based on the theory of nonlinear deterministic dynamical systems, or chaos theory.這套軟件源碼是根據(jù)H. Kantz and T. Schreiber, ``Nonlinear Time Series Analysis , Cambridge University Press, Cambridge (1997).
標(biāo)簽：
with
the
analysis
software
上傳時(shí)間：
2013-12-10
上傳用戶：ve3344
-
Kullanı lan bazı matlab bilgileri
Matlabda kodlar mfile lara yazı lı p kaydedilebilir. Ü st menüden, file, new, mfile. Command windowa yazdı kları nı zı kaydedemezsiniz. Yazdı ğ ı nı z kodu ç alı ş tı rabilmeniz iç in ç alı ş tı ğ ı nı z current directory nin altı na kaydetmelisiniz. Current directory i dosyanı n bulunduğ u yere de gö türebilirsiniz
標(biāo)簽：
305
bilgileri
kaydedile
Matlabda
上傳時(shí)間：
2014-01-06
上傳用戶：miaochun888
-
實(shí)驗(yàn)源代碼
//Warshall.cpp #include<stdio.h> void warshall(int k,int n) { int i , j, t; int temp[20][20]; for(int a=0;a<k;a++) { printf("請(qǐng)輸入矩陣第%d 行元素:",a); for(int b=0;b<n;b++) { scanf ("%d",&temp[a][b]); } } for(i=0;i<k;i++){ for( j=0;j<k;j++){ if(temp[ j][i]==1) { for(t=0;t<n;t++) { temp[ j][t]=temp[i][t]||temp[ j][t]; } } } } printf("可傳遞閉包關(guān)系矩陣是:\n"); for(i=0;i<k;i++) { for( j=0;j<n;j++) { printf("%d", temp[i][ j]); } printf("\n"); } } void main() { printf("利用 Warshall 算法求二元關(guān)系的可傳遞閉包\n"); void warshall(int,int); int k , n; printf("請(qǐng)輸入矩陣的行數(shù) i: "); scanf("%d",&k);
四川大學(xué)實(shí)驗(yàn)報(bào)告 printf("請(qǐng)輸入矩陣的列數(shù) j: "); scanf("%d",&n); warshall(k,n); }
標(biāo)簽：
warshall
離散
實(shí)驗(yàn)
上傳時(shí)間：
2016-06-27
上傳用戶：梁雪文以
-
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NULL 0
#define MaxSize 30
typedef struct athletestruct /*運(yùn)動(dòng)員*/
{
char name[20];
int score; /*分?jǐn)?shù)*/
int range; /**/
int item; /*項(xiàng)目*/
}ATH;
typedef struct schoolstruct /*學(xué)校*/
{
int count; /*編號(hào)*/
int serial; /**/
int menscore; /*男選手分?jǐn)?shù)*/
int womenscore; /*女選手分?jǐn)?shù)*/
int totalscore; /*總分*/
ATH athlete[MaxSize]; /**/
struct schoolstruct *next;
}SCH;
int nsc,msp,wsp;
int ntsp;
int i,j;
int overgame;
int serial,range;
int n;
SCH *head,*pfirst,*psecond;
int *phead=NULL,*pafirst=NULL,*pasecond=NULL;
void create();
void input ()
{
char answer;
head = (SCH *)malloc(sizeof(SCH)); /**/
head->next = NULL;
pfirst = head;
answer = 'y';
while ( answer == 'y' )
{
Is_Game_DoMain:
printf("\nGET Top 5 when odd\nGET Top 3 when even");
printf("\n輸入運(yùn)動(dòng)項(xiàng)目序號(hào) (x<=%d):",ntsp);
scanf("%d",pafirst);
overgame = *pafirst;
if ( pafirst != phead )
{
for ( pasecond = phead ; pasecond < pafirst ; pasecond ++ )
{
if ( overgame == *pasecond )
{
printf("\n這個(gè)項(xiàng)目已經(jīng)存在請(qǐng)選擇其他的數(shù)字\n");
goto Is_Game_DoMain;
}
}
}
pafirst = pafirst + 1;
if ( overgame > ntsp )
{
printf("\n項(xiàng)目不存在");
printf("\n請(qǐng)重新輸入");
goto Is_Game_DoMain;
}
switch ( overgame%2 )
{
case 0: n = 3;break;
case 1: n = 5;break;
}
for ( i = 1 ; i <= n ; i++ )
{
Is_Serial_DoMain:
printf("\n輸入序號(hào) of the NO.%d (0<x<=%d): ",i,nsc);
scanf("%d",&serial);
if ( serial > nsc )
{
printf("\n超過學(xué)校數(shù)目,請(qǐng)重新輸入");
goto Is_Serial_DoMain;
}
if ( head->next == NULL )
{
create();
}
psecond = head->next ;
while ( psecond != NULL )
{
if ( psecond->serial == serial )
{
pfirst = psecond;
pfirst->count = pfirst->count + 1;
goto Store_Data;
}
else
{
psecond = psecond->next;
}
}
create();
Store_Data:
pfirst->athlete[pfirst->count].item = overgame;
pfirst->athlete[pfirst->count].range = i;
pfirst->serial = serial;
printf("Input name:) : ");
scanf("%s",pfirst->athlete[pfirst->count].name);
}
printf("\n繼續(xù)輸入運(yùn)動(dòng)項(xiàng)目(y&n)？");
answer = getchar();
printf("\n");
}
}
void calculate() /**/
{
pfirst = head->next;
while ( pfirst->next != NULL )
{
for (i=1;i<=pfirst->count;i++)
{
if ( pfirst->athlete[i].item % 2 == 0 )
{
switch (pfirst->athlete[i].range)
{
case 1:pfirst->athlete[i].score = 5;break;
case 2:pfirst->athlete[i].score = 3;break;
case 3:pfirst->athlete[i].score = 2;break;
}
}
else
{
switch (pfirst->athlete[i].range)
{
case 1:pfirst->athlete[i].score = 7;break;
case 2:pfirst->athlete[i].score = 5;break;
case 3:pfirst->athlete[i].score = 3;break;
case 4:pfirst->athlete[i].score = 2;break;
case 5:pfirst->athlete[i].score = 1;break;
}
}
if ( pfirst->athlete[i].item <=msp )
{
pfirst->menscore = pfirst->menscore + pfirst->athlete[i].score;
}
else
{
pfirst->womenscore = pfirst->womenscore + pfirst->athlete[i].score;
}
}
pfirst->totalscore = pfirst->menscore + pfirst->womenscore;
pfirst = pfirst->next;
}
}
void output()
{
pfirst = head->next;
psecond = head->next;
while ( pfirst->next != NULL )
{
// clrscr();
printf("\n第%d號(hào)學(xué)校的結(jié)果成績:",pfirst->serial);
printf("\n\n項(xiàng)目的數(shù)目\t學(xué)校的名字\t分?jǐn)?shù)");
for (i=1;i<=ntsp;i++)
{
for (j=1;j<=pfirst->count;j++)
{
if ( pfirst->athlete[j].item == i )
{
printf("\n %d\t\t\t\t\t\t%s\n %d",i,pfirst->athlete[j].name,pfirst->athlete[j].score);break;
}
}
}
printf("\n\n\n\t\t\t\t\t\t按任意建 進(jìn)入下一頁");
getchar();
pfirst = pfirst->next;
}
// clrscr();
printf("\n運(yùn)動(dòng)會(huì)結(jié)果:\n\n學(xué)校編號(hào)\t男運(yùn)動(dòng)員成績\t女運(yùn)動(dòng)員成績\t總分");
pfirst = head->next;
while ( pfirst->next != NULL )
{
printf("\n %d\t\t %d\t\t %d\t\t %d",pfirst->serial,pfirst->menscore,pfirst->womenscore,pfirst->totalscore);
pfirst = pfirst->next;
}
printf("\n\n\n\t\t\t\t\t\t\t按任意建結(jié)束");
getchar();
}
void create()
{
pfirst = (struct schoolstruct *)malloc(sizeof(struct schoolstruct));
pfirst->next = head->next ;
head->next = pfirst ;
pfirst->count = 1;
pfirst->menscore = 0;
pfirst->womenscore = 0;
pfirst->totalscore = 0;
}
void Save()
{FILE *fp;
if((fp = fopen("school.dat","wb"))==NULL)
{printf("can't open school.dat\n");
fclose(fp);
return;
}
fwrite(pfirst,sizeof(SCH),10,fp);
fclose(fp);
printf("文件已經(jīng)成功保存\n");
}
void main()
{
system("cls");
printf("\n\t\t\t 運(yùn)動(dòng)會(huì)分?jǐn)?shù)統(tǒng)計(jì)\n");
printf("輸入學(xué)校數(shù)目 (x>= 5):");
scanf("%d",&nsc);
printf("輸入男選手的項(xiàng)目(x<=20):");
scanf("%d",&msp);
printf("輸入女選手項(xiàng)目(<=20):");
scanf("%d",&wsp);
ntsp = msp + wsp;
phead = (int *)calloc(ntsp,sizeof(int));
pafirst = phead;
pasecond = phead;
input();
calculate();
output();
Save();
}
標(biāo)簽：
源代碼
上傳時(shí)間：
2016-12-28
上傳用戶：150501
-
#include<stdio.h>
#define TREEMAX 100
typedef struct BT
{
char data;
BT *lchild;
BT *rchild;
}BT;
BT *CreateTree();
void Preorder(BT *T);
void Postorder(BT *T);
void Inorder(BT *T);
void Leafnum(BT *T);
void Nodenum(BT *T);
int TreeDepth(BT *T);
int count=0;
void main()
{
BT *T=NULL;
char ch1,ch2,a;
ch1='y';
while(ch1=='y'||ch1=='y')
{
printf("\n");
printf("\n\t\t 二叉樹子系統(tǒng)");
printf("\n\t\t*****************************************");
printf("\n\t\t 1---------建二叉樹 ");
printf("\n\t\t 2---------先序遍歷 ");
printf("\n\t\t 3---------中序遍歷 ");
printf("\n\t\t 4---------后序遍歷 ");
printf("\n\t\t 5---------求葉子數(shù) ");
printf("\n\t\t 6---------求結(jié)點(diǎn)數(shù) ");
printf("\n\t\t 7---------求樹深度 ");
printf("\n\t\t 0---------返 回 ");
printf("\n\t\t*****************************************");
printf("\n\t\t 請(qǐng)選擇菜單號(hào) （0--7）");
scanf("%c",&ch2);
getchar();
printf("\n");
switch(ch2)
{
case'1':
printf("\n\t\t請(qǐng)按先序序列輸入二叉樹的結(jié)點(diǎn):\n");
printf("\n\t\t說明：輸入結(jié)點(diǎn)（‘0’代表后繼結(jié)點(diǎn)為空）后按回車。\n");
printf("\n\t\t請(qǐng)輸入根結(jié)點(diǎn):");
T=CreateTree();
printf("\n\t\t二叉樹成功建立！\n");break;
case'2':
printf("\n\t\t該二叉樹的先序遍歷序列為:");
Preorder(T);break;
case'3':
printf("\n\t\t該二叉樹的中序遍歷序列為:");
Inorder(T);break;
case'4':
printf("\n\t\t該二叉樹的后序遍歷序列為:");
Postorder(T);break;
case'5':
count=0;Leafnum(T);
printf("\n\t\t該二叉樹有%d個(gè)葉子。\n",count);break;
case'6':
count=0;Nodenum(T);
printf("\n\t\t該二叉樹總共有%d個(gè)結(jié)點(diǎn)。\n",count);break;
case'7':
printf("\n\t\t該樹的深度為:%d",TreeDepth(T));
break;
case'0':
ch1='n';break;
default:
printf("\n\t\t***請(qǐng)注意：輸入有誤！***");
}
if(ch2!='0')
{
printf("\n\n\t\t按【Enter】鍵繼續(xù)，按任意鍵返回主菜單！\n");
a=getchar();
if(a!='\xA')
{
getchar();
ch1='n';
}
}
}
}
BT *CreateTree()
{
BT *t;
char x;
scanf("%c",&x);
getchar();
if(x=='0')
t=NULL;
else
{
t=new BT;
t->data=x;
printf("\n\t\t請(qǐng)輸入%c結(jié)點(diǎn)的左子結(jié)點(diǎn):",t->data);
t->lchild=CreateTree();
printf("\n\t\t請(qǐng)輸入%c結(jié)點(diǎn)的右子結(jié)點(diǎn):",t->data);
t->rchild=CreateTree();
}
return t;
}
void Preorder(BT *T)
{
if(T)
{
printf("%3c",T->data);
Preorder(T->lchild);
Preorder(T->rchild);
}
}
void Inorder(BT *T)
{
if(T)
{
Inorder(T->lchild);
printf("%3c",T->data);
Inorder(T->rchild);
}
}
void Postorder(BT *T)
{
if(T)
{
Postorder(T->lchild);
Postorder(T->rchild);
printf("%3c",T->data);
}
}
void Leafnum(BT *T)
{
if(T)
{
if(T->lchild==NULL&&T->rchild==NULL)
count++;
Leafnum(T->lchild);
Leafnum(T->rchild);
}
}
void Nodenum(BT *T)
{
if(T)
{
count++;
Nodenum(T->lchild);
Nodenum(T->rchild);
}
}
int TreeDepth(BT *T)
{
int ldep,rdep;
if(T==NULL)
return 0;
else
{
ldep=TreeDepth(T->lchild);
rdep=TreeDepth(T->rchild);
if(ldep>rdep)
return ldep+1;
else
return rdep+1;
}
}
標(biāo)簽：
二叉樹
子系統(tǒng)
上傳時(shí)間：
2020-06-11
上傳用戶：ccccy
-
利用msp430作網(wǎng)路資料傳輸,可監(jiān)控溫度..,的源碼
標(biāo)簽：
msp
430
控溫
上傳時(shí)間：
2013-12-10
上傳用戶：冇尾飛鉈
-
常規(guī)的壓控電源采用的是并聯(lián)電流負(fù)反饋電路，這種電路輸出電壓柔性較差，電壓輸出效率低，因?yàn)槿与娮枰嫉艉艽笠徊糠值碾妷海⑶页Ｒ?guī)的壓控電流源不能實(shí)現(xiàn)一端接地，這也是并聯(lián)電流負(fù)反饋本身的
標(biāo)簽：
Howland
電流泵
電流源設(shè)計(jì)
上傳時(shí)間：
2013-07-02
上傳用戶：yyyyyyyyyy
-
此電路為05年參加全國大學(xué)生電子賽數(shù)控恒流源中壓控電流源部分的電路圖,輸出電流可在0-2000mA之間可調(diào).
標(biāo)簽：
壓控恒流源
上傳時(shí)間：
2013-06-10
上傳用戶：boyaboy
