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Articles by Ayush Gupta
Page 35 of 44
Program to print ‘N’ alphabet using the number pattern from 1 to n in C++
In this tutorial, we will be discussing a program to print ‘N’ alphabet using the number pattern from 1 to n.For this we will have to print the english alphabet N. Our task is to determine the size of the letter and print it back using the numbers from 1 to n.Example Live Demo#include using namespace std; //printing the letter N void print_N(int N){ int index, side_index, size; int Right = 1, Left = 1, Diagonal = 2; for (index = 0; index < N; index++) { cout
Read MoreProgram to make a histogram of an array in C++
In this tutorial, we will be discussing a program to make a histogram by the data given inside an array.For this, we will be provided with integer values inside an array. Our task is to plot a histogram keeping the value of both coordinates x and y equal to the value provided in the array.Example Live Demo#include using namespace std; void make_histogram(int arr[], int n){ int maxEle = *max_element(arr, arr + n); for (int i = maxEle; i >= 0; i--) { cout.width(2); cout
Read MoreProgram to invert bits of a number Efficiently in C++
In this tutorial, we will be discussing a program to invert bits of a number efficiently.For this we will be given with a non-negative number. Our task is to convert the number in the binary format, invert the binary bits of the number. And then finally print the decimal equivalent of the number.Example Live Demo#include using namespace std; //inverting bits of number int invert_bit(int n){ int x = log2(n) ; int m = 1
Read MoreC++ Program to implement t-test
In this tutorial, we will be discussing a program to implement t-test.The t-test of the student’s T test is used to compare two means and tell if both of them are similar or different. Along with this, t-test also helps to determine how large the differences are to know the reason for the change.Example#include using namespace std; //calculating mean float calc_mean(float arr[], int n){ float sum = 0; for (int i = 0; i < n; i++) sum = sum + arr[i]; return sum / n; } //calculating standard deviation float calc_deviation(float arr[], ...
Read MoreC++ Program to implement standard error of mean
In this tutorial, we will be discussing a program to implement standard error of mean.Standard error of mean is the estimation of sample mean dispersion from population mean. Then it is used to estimate the approximate confidence intervals for the mean.Example#include using namespace std; //calculating sample mean float calc_mean(float arr[], int n){ float sum = 0; for (int i = 0; i < n; i++) sum = sum + arr[i]; return sum / n; } //calculating standard deviation float calc_deviation(float arr[], int n){ float sum = 0; for (int i = ...
Read MoreC++ program to implement Simpson’s 3/8 rule
In this tutorial, we will be discussing a program to implement SImpson’s ⅜ rule.Simpson’s ⅜ rule is used for doing numerical integrations. The most common use case of this method is in performing numerical approximations of definite integrals.In this, the parabolas on the graph are used for performing the approximations.Example#include using namespace std; //function that is to be integrated float func_inte( float x){ return (1 / ( 1 + x * x )); } //calculating the approximations float func_calculate(float lower_limit, float upper_limit, int interval_limit ){ float value; float interval_size = (upper_limit - lower_limit) / interval_limit; float ...
Read MoreC++ Program to implement Linear Extrapolation
In this tutorial, we will be discussing a program to implement Linear Extrapolation.Extrapolation is defined as a process in which the required value for a certain function is beyond the lower or the upper limits of the function definition.In the case of Linear Extrapolation, the value beyond the scope is found using the tangent made on the graph of the function to determine the required value. Linear Extrapolation gives quite accurate results when applied.Example#include using namespace std; //structuring the values of x and y struct Data { double x, y; }; //calculating the linear extrapolation double calc_extrapolate(Data d[], ...
Read MoreC++ program to implement Inverse Interpolation using Lagrange Formula
In this tutorial, we will be discussing a program to implement Inverse Interpolation using Lagrange formula.Inverse Interpolation is defined as the method of finding the value of an independent variable from the given value of dependent value lying between two tabulated set of values for an unknown function.Example#include using namespace std; //structuring the values of x and y struct Data { double x, y; }; //calculating inverse interpolation double calc_invinter(Data d[], int n, double y){ double x = 0; int i, j; for (i = 0; i < n; i++) { double ...
Read MoreC++ program to implement Collatz Conjecture
In this tutorial, we will be discussing a program to implement Collatz Conjecture.For this, we will be given with a number n and we have to find out whether it can be converted to 1 using two operations −If n is even, n is converted to n/2.If n is odd, n is converted to 3*n + 1.Example#include using namespace std; //checking if n reaches to 1 or not bool check1(int n, unordered_set &s){ if (n == 1) return true; if (s.find(n) != s.end()) return false; return (n % 2)? check1(3*n + ...
Read MoreC++ program to get the Sum of series: 1 – x^2/2! + x^4/4! -…. upto nth term
In this tutorial, we will be discussing a program to get the sum of series 1 – x^2/2! + x^4/4! … upto nth term.For this we will be given with the values of x and n. Our task will be to calculate the sum of the given series upto the given n terms. This can be easily done by computing the factorial and using the standard power function to calculate powers.Example#include #include //calculating the sum of series double calc_sum(double x, int n){ double sum = 1, term = 1, fct, j, y = 2, m; int ...
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