• cin>>
• cout<<
• getline (<input stream>, <string vairable>)

• variable type: apstring

<conio.h>

• clrscr()
• getch()

• fmod (a number, divisor)
• log (x)
• pow (number, exponent)
• sqrt (x)

<iomanip.h>

• setiosflags(<flag1> | <flag2> | …)
• fixed
• showpoint
• scientific
• right
• setw
• setprecision

• int graphdrivers
• initgraph
• moveto(int x, int y)
• lineto(int x, int y)
• outtext(<string>)
• linerel(<x distance>, <y distance>)
• moverel(<x distance>,<y distance>)
• circle(center_x, center_y, radius)
• rectangle(upper_x, upper_y, lower_x, lower_y)
• setlinestyle(<style>, <pattern>,<width>)
• Note:
• <style> is an integer
• <pattern> is zero for no pattern
• <width> is 1 for normal width and 3 for think width

• int
• double
• char
• apstring
• float
• long
• short int
• long int