2. ?
** Main Menu **
1.
INPUT DATA
2.
DISPLAY DATA
3.
EXIT
Select 1-3 = …
1.
2.
3.

3. 



4. 



5. #include <stdio.h>
void function-name1()
{
…………….
}
void function-name2()
{
…………….
}
main()
{
function-name2();
…………….
function-name1();
}

6. #include <stdio.h>
void function-name1();
void function-name2();
main()
{
function-name2();
…………….
function-name1();
}
void function-name1()
{
…………….
}
void function-name2()
{
…………….
}

7. 

203+102

345-123

20x123

1000/25

8. 



9. void function_name();
#include <stdio.h>
void addition()
void main()
{
addition();
……………….
}
void addition()
{
……………….
}

10. void function_name(type_parameter parameter_name [,…]);
#include <stdio.h>
void addition(int, int)
void main()
{
int a, b;
addition(a,b);
……………….
}
void addition(int m, int n)
{
……………….
}

11. type_variable function_name(type_parameter parameter_name [,…]);
#include <stdio.h>
int gold(int)
void main()
{
int money, pay;
pay = gold(money);
……………….
-
}
int gold(int recieve)
{
……………….
change = receive * 100;
return(change);
}
-

12. (Global Variable)


(

main() )
(Local Variable)



(
main() )

13.  sin(x);
sine
x
 cos(x);
cosine
x
 tan(x);
tangent
x
 sqrt(x);
x
 pow(x,y);
x
y
 ceil(x);
x
 floor(x);
x
 log(x);
log
n
x
 log10(x);
log
10
 exp(x);
(e=2.718282)
 fabs(x);
x
e
x

14.  strcpy(string1,string2);
 strcat(string1,string2);
 strcmpat(string1,string2);
 strlen(string);
 strcmp(string1,string2);
 tolower(character);
 Toupper(character);