How to use fork and exec System Call

Using fork and exec System calls in Linux (UNIX) operating systems. Fork system call is used to create a child process from a parent process.
#include<stdio.h>
main()
{

Previous Year Question Paper for Principle of Management for B.Tech Courses

Free download Previous year 2014 question paper for B.Tech degree examination of Principle of management for the branches : Aeronautical Engineering, Computer science, Electrical and electronics engineering (AN, CS, EE) Fifth semester.

Subject : Principle of Management (5th sem)
Course : BTech Engineering
Department: Aeronautical Engineering, Computer Science and engineering (CS), Electrical and electronics engineering
Semester: Fifth semester (s5)
University : MG university Kottayam kerala

Algorithm, C and C++ Programs to find Closure From Functional Dependencies

In this post we will see how to find closure of an attribute or a set of attributes. Before learning how to get closure, we should first know what is a closure. Closure of a given set C is the set of attributes that are functionally determined by the set C under the set of functional dependencies F. There can be closure for any set. Every attribute in the set whose closure is to be found out, will be a member of its closure set C⁺ also. Consider an example:

Diagonalisation Principle as Proving Technique - Tutorial with Examples

Diagonalisation principle is a mathematical method of proof. It is included in Theory of computation as a proving technique. The following is a download link to a PDF tutorial of Diagonalization principle.

Click here to download tutuorial as PDF

Age of Empires 3 Cheat Codes and Tricks

It would be helpful sometimes to use some of the cheat codes while you play the game Age of Empires III from Ensemble studios. There are some tricks also which will help you to enjoy the game better. Here are the cheat codes and game tricks and hints for the Age of Empire 3 Game. You can use the same cheats for the Warchiefs and Asian dynasties extension packs of the game also.

Cheat codes

Code	Effect
this is too hard	Win in singleplayer
<censored>	Gives 10,000 wood
Ya gotta make do with what ya got	spawns the Mediocre Bombard at your Home City gather point
Sooo Good	Turn on “Musketeer’ed!” when you get killed by Musketeers
Speed always wins

Principle of Mathematical Induction - Tutorial with Example Problems

In this post, I am adding a study material for Principle of Mathematical induction. The principle of Mathematical induction is a proving technique widely used. Therefore, Mathematical induction also comes in various subjects like mathematics, physics and theory of computation (also in engineering courses). The same thing is taught in plus one (first year of higher secondary or senior seconadary (for CBSE)) maths. Here i am adding a pdf file with a tutorial for Principle of mathematical induction. You can download the PDF tutorial from following link:

Click here to download PDF tutorial.

C and C++ Programs to Find Sum of Digits of a Given Number

The following are C and C++ programs to find sum of digits of any given integer.

C Program

#include<stdio.h>
#include<conio.h>
void main()
{

C Program to Calculate Determinant of Matrix of Order Upto 3

In this post i am sharing a C program to calculate determinant of matrices of order upto 3 (3x3).

#include<stdio.h>


void main()

{int a[10][10],i,m,j;

int det=0; 

printf("\nEnter the order of matrix:\n "); 

scanf("%i",&m);

printf("\nenter elements\n");

for(i=0;i<m;i++)

{
for(j=0;j<m;j++)
scanf("%d",&a[i][j]); }

printf("\nThe matrix is\n");

for(i=0;i<m;i++)

{
printf("\n");

for(j=0;j<m;j++)
printf("%3d",a[i][j]);

}

printf("\nthe transpose is\n");

for(i=0;i<m;i++)
{
for(j=0;j<m;j++)

printf("%3i",a[j][i]);

printf("\n");

}

if(m==1)

{
det=a[0][0];

printf("det=%i",det);

}