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Articles on Trending Technologies
Technical articles with clear explanations and examples
1's and 2's complement of a Binary Number?
Binary numbers are expressed in base 2, using only the digits '0' and '1'. Each digit in a binary number is called a bit. Understanding 1's and 2's complement is essential for representing signed numbers in computer systems. 1's Complement One's complement of a binary number is obtained by inverting all bits − changing every '0' to '1' and every '1' to '0'. Syntax 1's complement = invert all bits Example: 101100 → 010011 2's Complement Two's complement of a binary number is obtained by adding 1 to the 1's complement of ...
Read MoreSum of the first N Prime numbers
In C programming, finding the sum of the first N prime numbers involves identifying prime numbers sequentially and adding them together. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Syntax int isPrime(int num); int sumOfFirstNPrimes(int n); Algorithm The approach involves checking each number starting from 2 for primality, and when a prime is found, adding it to the sum until we have found N primes − Start with the first prime number (2) Check each subsequent number for primality Add ...
Read MoreSum of first N natural numbers which are divisible by X or Y
The sum of first N natural numbers which are divisible by X or Y involves finding all numbers from 1 to N that are multiples of either X or Y, then adding them together. This is a common problem in competitive programming and mathematical computations. Syntax // Method 1: Loop approach for(int i = 1; i
Read MoreC Program to Add two Integers
A program to add two integers takes two numbers, performs their mathematical sum, and stores the result in another variable. Syntax int sum = number1 + number2; Method 1: Adding Fixed Values This approach demonstrates adding two predefined integer values − #include int main() { int a = 545; int b = 123; int sum = a + b; printf("The first number is %d", a); ...
Read MoreC Program for Program to find the area of a circle?
The area is a quantity that represents the extent of the figure in two dimensions. The area of a circle is the area covered by the circle in a two-dimensional plane. To find the area of a circle, the radius [r] or diameter [d] (2 × radius) is required. The formula used to calculate the area is (π × r2) or {(π × d2)/4}. Syntax area = π × radius × radius area = (π × diameter × diameter) / 4 Method 1: Finding Area Using Radius This method calculates the circle area ...
Read MoreAdd 1 to a given number?
Adding 1 to a given number is a fundamental operation in C programming that increments a variable's value by one. This operation is commonly used in loops, counters, and iterative processes. Syntax variable = variable + 1; // Method 1: Addition assignment variable++; // Method 2: Post-increment ++variable; // Method 3: Pre-increment There are multiple methods to add 1 to a given number in C ...
Read MoreAverage of first n even natural numbers?
The average of first n even natural numbers is the sum of the numbers divided by the count of numbers. The first n even natural numbers are 2, 4, 6, 8, ..., 2n. Syntax Average = Sum of first n even numbers / n You can calculate this using two methods − Find the sum of n even natural numbers using a loop and divide by n Use the mathematical formula for direct calculation Method 1: Using Loop This method iterates through the first n even numbers, calculates their sum, ...
Read MoreProgram to calculate Area Of Octagon
An octagon is a polygon with eight sides. To calculate the area of a regular octagon, we use a specific mathematical formula based on the side length. Syntax Area = 2 * (1 + √2) * side² Where side is the length of one side of the regular octagon. Formula Explanation The area of a regular octagon can be calculated using the formula − Area = 2 * (1 + √2) * a² Where: a is the side length of the octagon √2 is approximately 1.414 The coefficient 2 * ...
Read MoreProgram to calculate area of Enneagon
An enneagon (also known as nonagon) is a polygon with 9 sides. To calculate the area of an enneagon, we use a specific mathematical formula based on the side length. Syntax Area = (a² × 9) / (4 × tan(20°)) Area ≈ 6.1818 × a² Where a is the length of each side of the enneagon. ...
Read MoreProgram to calculate area of Circumcircle of an Equilateral Triangle
A circumcircle is a circle that passes through all vertices of a polygon. For an equilateral triangle, the circumcircle can be calculated using the relationship between the triangle's side length and the circle's radius. Syntax Area = (π × a²) / 3 where a = side length of equilateral triangle Mathematical Formula The area of the circumcircle of an equilateral triangle with side length a is given by − Area = (π × a²) / 3 This formula is derived from the fact that the circumradius R of an equilateral triangle is ...
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