Programming Articles - Page 739 of 3363

In this article, we will understand how to find the product of two numbers using recursion in Java. A recursive function is a function that calls itself multiple times until a particular condition is satisfied. Product of two Numbers Using Recursion Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function. To find the product of two numbers, let's say a and b, using recursion, the base case will be (if y = 0, ... Read More

In this article, we will understand how to find the sum of the digits of a number using recursion in Java. A recursive function is a function that calls itself multiple times until a particular condition or base condition is met. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function. Problem Statement Write a program in Java to find the sum of the digits of a number using recursion. Below is a demonstration of the same. Input Enter the number : 12131415 ... Read More

In this article, we will learn to pass a lambda expression as a method argument in Java. A lambda expression is a short block of code that takes in parameters and returns a value. Lambda Expression Lambda expressions allow passing functionality as a method parameter, reducing the need for anonymous classes. They are often used in functional interfaces, especially when working with collections and streams. Problem Statement Given an Arraylist the goal is to reverse the strings present in it. Below is a demonstration of the same − Input ("Apple", "Orange", "Grapes") Output elppA, egnarO, separG Reversing Strings in ... Read More

To calculate the power of a number, Java provides different ways to do this using loops, built-in methods, and recursion. In this article, we will learn how to calculate the power of a number using recursion. In Java, Recursion is a process in which a function calls itself multiple times until it reaches a base condition, and the corresponding function is called a recursive function. Problem Statement Given a base number and a power value, we need to calculate the result of raising the base to the power using recursion. Below is a demonstration of the same. Input: Enter ... Read More

To return True if all entries of two arrays are equal, use the ma.allequal() method in Python Numpy. Returns True if the two arrays are equal within the given tolerance, False otherwise. If either array contains NaN, then False is returned.The fill_value sets whether masked values in a or b are considered equal (True) or not (False). A masked array is the combination of a standard numpy.ndarray and a mask. A mask is either nomask, indicating that no value of the associated array is invalid, or an array of booleans that determines for each element of the associated array whether ... Read More

To clip (limit) the values in an array, use the np.ma.clip() method in Python Numpy. The "out" parameter is where results will be placed in this array. It may be the input array for in-place clipping. out must be of the right shape to hold the output. Its type is preserved. . Given an interval, values outside the interval are clipped to the interval edges. For example, if an interval of [0, 1] is specified, values smaller than 0 become 0, and values larger than 1 become 1. Equivalent to but faster than np.minimum(a_max, np.maximum(a, a_min)).The function returns an array ... Read More

To clip (limit) the values in an array, use the np.ma.clip() method in Python Numpy. Given an interval, values outside the interval are clipped to the interval edges. For example, if an interval of [0, 1] is specified, values smaller than 0 become 0, and values larger than 1 become 1. Equivalent to but faster than np.minimum(a_max, np.maximum(a, a_min)).The out is where the results will be placed in this array. It may be the input array for in-place clipping. out must be of the right shape to hold the output. Its type is preserved.The function returns an array with the ... Read More

In this article, we will understand how to find the factorial of a number using recursion in Java. The factorial of a positive number is the product of the number itself and all descending positive integers up to "n". The factorial of a negative number does not exist, and the factorial of 0 is 1. The factorial of a positive number is - factorial of n (n!) = 1 * 2 * 3 * 4 * ... * n Factorial Using a Recursive Function A recursive function is a function that calls itself multiple times until a particular condition is satisfied. ... Read More

The given task is to write a Java program to check if an integer can be expressed as the sum of two prime numbers. A number is said to be a prime if it has only two factors, which are 1 and itself, and cannot be divided by any other number. Some examples of prime numbers are 2, 3, 5, 7, 11, 13, and so on. 2 is the only even prime number; all other prime numbers are odd numbers. Example Scenario Let's understand the problem with an example. The possible solution is 43 = 2 + 41. Here, 2 and ... Read More

To generate a Vandermonde matrix, use the np.ma.vander() method in Python Numpy. Set the number of columns in the output using the N parameter. If N is not specified, a square array is returned (N = len(x)).The columns of the output matrix are powers of the input vector. The order of the powers is determined by the increasing boolean argument. Specifically, when increasing is False, the i-th output column is the input vector raised element-wise to the power of N - i - 1. Such a matrix with a geometric progression in each row is named for Alexandre- Theophile Vandermonde.StepsAt ... Read More