CCC
C1             standard functions)1                  mathematic functions)1                     2–5    -8
Character functions)8         String functions)8 - 10
C                                                C                                                                C       ...
C compiler”          ” library functions)                           mathematic functions)                                 ...
log(x)                log10(x)      ceil(x)floor(x)              fabs(x)                acos(x)                           ...
3)              atan(x)                                       arc tanx           x     atan(x);                sin(x)     ...
cos(x);6)          tan(x)                              tan          x      x     tan(x);                                  ...
*         math1.c           */#include<stdio.h>/*#include<math.h>/*#include<conio.h>/*void main(void)/*{     double r, pi ...
clrscr();/*     printf("%fn",asin(r));/*     printf("%fn",acos(r));/*     printf("%fn",atan(r));/*     printf("%fn",sin(r)...
getch();/*}
printf("%fn",asin(r));  arc sin                 r       rprintf("%fn",acos(r));  arc cosine                  r       r
printf("%fn",atan(r)); arc tan                   r           rprintf("%fn",sin(r));  sine                 r           rpri...
enter             sqrt(x)                                     square root)                          x      x    sqrt(x);  ...
9)          pow(x,y)                       xyxy     pow(x, y);                            character functions)            ...
isalpha(ch), isdigit(ch), islower(ch), isupper(ch),tolower(ch), toupper(ch),isspace(ch), isxdigit(ch)        1.3          ...
sizeof(x)                                        xByte                   user defined functions)                          ...
ภาษา C โปรแกรมย่อยและฟังก์ชันมาตรฐาน
ภาษา C โปรแกรมย่อยและฟังก์ชันมาตรฐาน
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ภาษา C โปรแกรมย่อยและฟังก์ชันมาตรฐาน

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Transcript of "ภาษา C โปรแกรมย่อยและฟังก์ชันมาตรฐาน"

  1. 1. CCC
  2. 2. C1 standard functions)1 mathematic functions)1 2–5 -8
  3. 3. Character functions)8 String functions)8 - 10
  4. 4. C C C Header file C h standard functions) Cheader file C h header file #include<header file.h>
  5. 5. C compiler” ” library functions) mathematic functions) #include <math.h> type) double doubleacos(x) asin(x) atan(x)sin(x) cos(x) tan(x)sqrt(x) exp(x) pow(x,y)
  6. 6. log(x) log10(x) ceil(x)floor(x) fabs(x) acos(x) arc cosine x x radian) acos(x); 2) asin(x) arc sinex x asin(x);
  7. 7. 3) atan(x) arc tanx x atan(x); sin(x) sine x x sin(x); 5) cos(x) cosine x x
  8. 8. cos(x);6) tan(x) tan x x tan(x); acos(x), asin(x),atan(x), sin(x),cos(x) tan(x) acos(x), asin(x), atan(x), sin(x),cos(x) tan(x)
  9. 9. * math1.c */#include<stdio.h>/*#include<math.h>/*#include<conio.h>/*void main(void)/*{ double r, pi = 3.141592654;/* r = pi/180;/*
  10. 10. clrscr();/* printf("%fn",asin(r));/* printf("%fn",acos(r));/* printf("%fn",atan(r));/* printf("%fn",sin(r));/* printf("%fn",cos(r));/* printf("%fn",tan(r));/* printf("nPress any key back to program ..."); /*
  11. 11. getch();/*}
  12. 12. printf("%fn",asin(r)); arc sin r rprintf("%fn",acos(r)); arc cosine r r
  13. 13. printf("%fn",atan(r)); arc tan r rprintf("%fn",sin(r)); sine r rprintf("%fn",cos(r)); cosine r rprintf("%fn",tan(r)); tan r r
  14. 14. enter sqrt(x) square root) x x sqrt(x); 8) exp(x) ex x e e exp(x);
  15. 15. 9) pow(x,y) xyxy pow(x, y); character functions) single char( byte)#include<ctype.h> isalnum(ch),
  16. 16. isalpha(ch), isdigit(ch), islower(ch), isupper(ch),tolower(ch), toupper(ch),isspace(ch), isxdigit(ch) 1.3 string functions) string)#include<string.h> strlen(s), strcmp(s1,s2), strcpy(s), strcat(s1,s2) 1.4 clrscr( ) textmode gotoxy(x,y)cursor)
  17. 17. sizeof(x) xByte user defined functions) C ” ” ” ” user define functions : UDF) C

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