  I have looked at urlLink Omid's Blog and found out that he wants to do a program in C+  that will make simple calculations like adding and multiplying.  I figured to do mine in C,  so check his blog in a while so you could see the real difference between the two most common used computer languages today.  Here is a program that will ask you what you wish to do;  add,
 substract,  divide or multiply.  then it will ask you for two numbers to perform the functions on.  Say you entered 1,  it will call the function ( if you entered 1,
 do this.  so it will perform adding.  Download the . exe file from urlLink HERE to test it on your computer.  # include &
lt; stdio. h& gt;  # include &
lt; stdlib. h& gt;  # include &
lt; conio. h& gt;  void main( void)
 {  char num[ 1]  int number;  int add1;  int add2;
 int addfinal;  int sub1;  int sub2;  int subfinal;  int mul1;  int mul2;
 int mulfinal;  int div1;  int div2;  int divfinal;  printf( Welcome,
 I am the computer genie! n"  printf( First tell me what you wish to be doing: n\ n"
 printf( 1- Addition \ t 2- Subtraction \ t 3-
Multipication \ t 4- Division \ t 5- Exit\ n\
n"  gets( num)  number= atoi( num)
 if( number= 1)  {  printf( nExcellent!
 Now type the first number:  scanf( i" add1)  printf( n Now type the second number:
 scanf( i" add2)  addfinal= add1+ add2;
 printf( nThe sum of those two numbers is % i\ n\ n" addfinal)
 }  else if( number= 2)  {  printf(
nExcellent!  Now type the first number:  scanf( i" sub1)  printf(
n Now type the second number that you wish to substract:  scanf( i" sub2)  subfinal= sub1-
sub2;  printf( nThe answer is % i\ n\ n"
subfinal)  }  else if( number= 3)  {
 printf( nExcellent!  Now type the first number:  scanf( i" mul1)
 printf( n Now type the second number:  scanf( i" mul2)  mulfinal=
mul1* mul2;  printf( nThe product of those two numbers is % i\ n\
n" mulfinal)  }  else if( number= 4)
 {  printf( nExcellent!  Now type the first number:  scanf( i"
div1)  printf( n Now type the second number that you wish to divide:  scanf( i" div2)
 divfinal= div1/ div2;  printf( nThe answer is % i\
n\ n" divfinal)  }  else {  printf(
I don't understand you mann!  }  printf( Press any key to quit.  getch(  return 0;
 }
