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Articles on Trending Technologies
Technical articles with clear explanations and examples
Golang Program to check if two numbers are Amicable Numbers
StepsRead two integers and store them in separate variables.Find the sum of the proper divisors of both the numbers.Check if the sum of the proper divisors is equal to the opposite numbers.If they are equal, they are amicable numbers.Print the final result.Enter number 1: 220Enter number 2: 284Amicable!Enter number 1: 349Enter number 2: 234Not Amicable!Examplepackage main import "fmt" func main(){ var a, b int fmt.Print("Enter first number: ") fmt.Scanf("%d", &a) fmt.Print("Enter second number: ") fmt.Scanf("%d", &b) sum1 := 0 for i:=1; i
Read MoreGolang Program to Find the Area of a Triangle Given All Three Sides
StepsRead all the three sides of the triangle and store them in three separate variables.Using the Heron's formula, compute the area of the triangle.Print the area of the triangle.Enter first side: 15Enter second side: 9Enter third side: 7Area of the triangle is: 20.69Enter first side: 5Enter second side: 6Enter third side: 7Area of the triangle is: 14.7ExplanationUser must enter all three numbers and store them in separate variables.First, the value of s is found which is equal to (a+b+c)/2Then, the Heron's formula is applied to determine the area of the triangle formed by all three sides.Finally, the area of the ...
Read MoreGolang Program to Find the Gravitational Force Acting Between Two Objects
StepsRead both the masses and the distance between the masses and store them in separate variables.Initialize one of the variables to the value of gravitational constant, G.Then, the formula f=(G*m1*m2)/(r**2) is used to determine the force acting between the masses.Rounding off up to two decimal places, print the value of the force.Enter the first mass: 1000000Enter the second mass: 500000Enter the distance between the centres of the masses: 20Hence, the gravitational force is: 0.08 NEnter the first mass: 90000000Enter the second mass: 7000000Enter the distance between the centres of the masses: 20Hence, the gravitational force is: 105.1 NExplanationUser must enter ...
Read MoreAnonymous function in Dart Programming
A function without a name is known as an anonymous function. They behave in the exact same manner as a normal named function would. The only difference between the named and an anonymous function is how different they are in syntax.Anonymous functions are used in Dart to form closures. An anonymous function contains a self-contained block of codes, also it can be passed as a parameter to another function as well.Anonymous function Syntax(parameterList){ // inner statement(s) }ExampleNow, let's consider a simple example of an anonymous function.Consider the example shown below −void main() { var fruits = ["Apple", "Mango", ...
Read MoreC Program to construct DFA accepting odd numbers of 0s and 1s
Construct deterministic finite automata (DFA) for the language L = { w : w has odd number of 0’s and w has odd number of 1’s}, over the alphabet Σ = {0, 1}.Example0111, 010101, 01110011 is an accepted string, because those strings have an odd number of 0’s and an odd number of 1’s.For the given language we will need four states to draw the main DFA which will read odd no. of 0s and 1s. We can also draw it by merging the two DFAs in which one will accept only an odd number of 0s and one accepts ...
Read MoreGolang Program to Print the Numbers in a Range (1, upper) without Using any Loops
StepsDefine a recursive function.Define a base case for that function that the number should be greater than zero.If the number is greater than 0, call the function again with the argument as the number minus 1.Print the number.Enter the upper limit: 512345Enter the upper limit: 1512..15Examplepackage main import ( "fmt" ) func printNo(number int){ if number >= 1{ printNo(number-1) fmt.Println(number) } } func main(){ var upper int fmt.Print("Enter the upper limit: ") fmt.Scanf("%d", &upper) printNo(upper) }OutputEnter the upper limit: 5 1 2 3 4 5
Read MoreGolang Program to Determine Recursively Whether a Given Number is Even or Odd
StepsTake a number from the user and store it in a variable.Pass the number as an argument to a recursive function.Define the base condition as the number to be lesser than 2.Otherwise, call the function recursively with the number minus 2.Then, return the result and check if the number is even or odd.Print the final result.Enter a number: 124Number is even!Enter a number: 567Number is odd!Examplepackage main import ( "fmt" ) func check(n int) bool{ if n < 2 { return n % 2 == 0 } return check(n - 2) } func ...
Read MoreHow to convert data frame values to their rank in R?
To convert data frame values to their rank in R, we can follow the below steps −First of all, create a data frame.Then, find the rank of each value using rank function with lapply.Create the data frameLet's create a data frame as shown below −> x1 y1 df dfOn executing, the above script generates the below output(this output will vary on your system due to randomization) − x1 y1 1 -0.9045608 1.95315551 2 -1.6222122 -1.19880638 3 0.8618855 -0.33643175 4 -0.3547085 -0.18097356 5 -0.3043621 -0.60342210 6 0.5606001 -0.83618995 7 -1.1752752 -0.46651702 ...
Read MoreHow to find the critical value of F for regression anova in R?
To find the critical value of F for regression anova in R, we can follow the below steps −First of all, create a data frame.Then, create the regression model.After that, find the critical value of F statistic using qf function.Create the data frameLet's create a data frame as shown below −> x y df dfOn executing, the above script generates the below output(this output will vary on your system due to randomization) − x y 1 5 5 2 0 9 3 1 3 4 3 5 5 2 5 6 2 4 7 3 6 8 4 6 9 ...
Read MoreCascade notation in Dart Programming
Cascade notation is used when we want to operate a sequence of operations on the same object. The cascade notation is denoted by the (..) symbol.It is similar to method chaining that we have in other programming languages and it does save us plenty of steps and need of temporary variable.ExampleConsider the following example for a representation of how the cascade notation works in Dart.class Sample{ var a; var b; void showA(x){ this.a = x; } void showB(y){ this.b = y; } void printValues(){ ...
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