Use the following library functions in short C sequences (e.g., 1-2 C instructions).

stdio.h

int getchar (void)

int putchar (int c)

char *gets (char *s)

int puts (char *s)

printf (char *format, arg1, arg2, )

scanf (char *format, adr1, adr2, )

int sscanf (char *s, char *format, adr1, adr2, )

conio.h

int getch(void)

int getche(void)

int ungetch(int c)

math.h

double acos (double x)

double asin(double x)

double atan (double x)

double atan2(double y, double x)

double ceil (double x)

double cos (double x)

double exp (double x)

double fabs (double x)

double floor (double x)

double log (double x)

double log10 (double x)

double pow (double x, double y)

double sin (double x)

double sqrt (double x)

double tan (double x)

stdlib.h

int atoi (char *s)

double atof (char *s)

Clarify the following concepts:

• ASCII tables
• Strings
• Float, double