C Articles - Page 62 of 134

In this tutorial, we will be discussing a program to find the roots of the Quadratic equation.Given a quadratic equation of the form ax2 + bx + c. Our task is to find the roots x1 and x2 of the given equation.For this, we are using the deterministic method, in thisD = √b2 - 4acthen the roots of the equation will bex1 = (-b + D)/2a ,andx2 = (-b - D)/2aExample#include #include #include //calculating the roots of equation void calc_roots(int a, int b, int c) {    if (a == 0) {       printf("Invalid Equation");       ... Read More

We are given with an integer ‘n’ and the task is to generate the hexagonal pattern and display the final output.ExampleInput-: n=5 Output-:Input-: n = 4 Output-:Approach we are using in the given program is as follows −Input the number ‘n’ from userDivide the entire pattern into three parts i.e. upper part, middle part and lower part Start loop i for printing the upper part of the pattern from i to 0 and i to be less than n and keep incrementing the value of i Start loop m for printing the middle part of the pattern from m to ... Read More

We are given with the sides of parallelogram and the task is to generate the circumference of a parallelogram with its given sides and display the resultWhat is a Parallelogram?Parallelogram is a type of quadratic which have −Opposite sides parallelOpposite angles equalPolygon diagonals bisects each otherShown in the below figure ‘a’ and ‘b’ are the sides of a parallelogram where parallel sides are shown in the figure.Perimeter/Circumference of a parallelogram is defined as −Circumference of Parallelogram = 2(a + b)                                           ... Read More

Given with a positive integer value let’s say ‘val’ and the task is to print the value of binomial coefficient B(n, k) where, n and k be any value between 0 to val and hence display the result.What is Binomial CoefficientBinomial coefficient (n, k) is the order of choosing ‘k’ results from the given ‘n’ possibilities. The value of binomial coefficient of positive n and k is given by$$C_k^n=\frac{n!}{(n-k)!k!}$$where, n >= kExampleInput-: B(9, 2) Output-:$$B_2^9=\frac{9!}{(9-2)!2!}$$ $$\frac{9\times 8\times 7\times 6\times 5\times 4\times 3\times 2\times 1}{6\times 5\times 4\times 3\times 2\times 1)\times 2\times 1}=\frac{362, 880}{1440}=252$$What is Binomial Coefficient TableThe Binomial Coefficient Table is formed ... Read More

We are given with the value of x and n where, x is the angle for cos and n is the number of terms in the cos(x) series.For Cos(x)Cos(x) is a trigonometric function which is used to calculate the value of x angle.Formula$$\cos (x) = \displaystyle\sum\limits_{k=0}^\infty \frac{(-1)^{k}}{(2k!)}x^{2k}$$For Cos(x) seriesCos(x) = 1 – (x*2 / 2!) + (x*4 / 4!) – (x*6 / 6!) + (x*8 / 8!)……ExampleInput-: x = 10, n = 3 Output-: 0.984804 Input-: x = 8, n = 2 Output-: 0.990266Approach used in the below program is as follows −Input the value of x and nApply the ... Read More

Given an interger n; the task is to find the Catalan Number on that nth position. So, before doing the program we must know what is a Catalan Number?Catlan numbers are the sequence of natural numbers, which occurs in the form of various counting number problems.Catalan numbers C0, C1, C2, … Cn are driven by formula −$$c_{n}=\frac{1}{n+1}\binom{2n}{n} = \frac{2n!}{(n+1)!n!}$$The few Catalan numbers for every n = 0, 1, 2, 3, … are 1, 1, 2, 5, 14, 42, 132, 429, 1430, 4862, …So if we entered n =3 we should get 5 as an output from the programSome of few ... Read More

Given a number n in form of a string; the task is to print that following number in large using hash symbols.Like we have provided a number “1234”The representation of the following number should be −Likewise we want our solution to be printed −ExampleInput: n[] = {“2234”} Output:Input: n[] = {“987”} Output:Approach we will be using to solve the given problem −Take at most 4 digit number a input in a string.Make arrays of every number one by one the large pattern we want for the number.Traverse the string and print every number one by one.AlgorithmStart    Step 1 -> ... Read More

Given a number as a string and a base; the task is to check whether the given number of is of that given base or not.We have to check the number and the base according to the number system in which there are bases like 2 for a binary number, 8 for an octal number, 10 for decimal number and 16 for a Hexadecimal number. According to this we have to find whether the given number in a string belongs to a particular base or not, If it belongs to a particular base then we have to print “Yes” on ... Read More

Given ‘a’ the First term, ‘d’ the common difference and ‘n’ for the number of terms in a series. The task is to find the nth term of the series.So, before discussing how to write a program for the problem first we should know what is Arithmetic Progression.Arithmetic progression or arithmetic sequence is a sequence of number where the difference between the two consecutive terms is same.Like we have first term i.e a =5, difference 1 and nth term we want to find should be 3. So, the series would be: 5, 6, 7 so the output must be 7.So, ... Read More

Given ‘a’ the First term, ‘r’ the common ratio and ‘n’ for the number of terms in a series. The task is to find the nth term of the series.So, before discussing how to write a program for the problem first we should know what is Geometric Progression.Geometric progression or Geometric sequence in mathematics are where each term after the first term is found by multiplying the previous one with the common ratio for a fixed number of terms.Like 2, 4, 8, 16, 32.. is a geometric progression with first term 2 and common ratio 2. If we have n ... Read More