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MATLAB is a robust and high-level programming language extensively used in engineering and scientific fields for system design. The most important fact about MATLAB is that it provides an easy-to-use graphical user interface (GUI). MATLAB has a built-in App Designer tool that allows users to develop a variety of applications that seamlessly translate their concepts into user-friendly GUIs. Overall, MATLAB is an invaluable tool for conveying complex information in a simplified and accessible manner. In this tutorial, we will explore how to create a GUI App using App Designer in MATLAB. How to Create Apps using MATLAB App Designer? The ... Read More
In MATLAB, a matrix is a 2D array that is mainly used store numerical data. MATLAB allows users to perform several different types of mathematical operations on matrices. This tutorial is primarily meant for explaining two matrix operations namely, finding indices of maximum and minimum elements of the matrix. However, MATLAB does not provide any direct method for finding the indices of maximum and minimum value of a matrix, but we can do this by using a combination of different built-in functions. For example, to find the index of maximum value of matrix, we can use a combination of the ... Read More
In MATLAB, a cell array is a type of data structure used to hold data of different data types and sizes. In short, a cell array allows us to store different types of data like numbers, characters, strings, arrays, and more. In a cell array, each cell can contain a specific type of data. Cell array is a powerful tool to handle heterogeneous data. In MATLAB, the curly braces '{}' are used to create a cell array, i.e. CellArray = {10, 'TutorialsPoint', [2 3 4]}; Hence, cell arrays play a vital role, when we need to store different types ... Read More
MATLAB is a powerful tool to manipulate matrices. In this article, we will explore how to extract subsets of consecutive entries in a matrix using MATLAB. But before that let's first get an overview of subsets of consecutive entries in a matrix. In a matrix, a set of elements that located in either rows or columns, or both in a sequence is referred to as a subset of consecutive entries in the matrix. The subsets of consecutive entries in a matrix can be extracted by specifying a range of columns and rows. The subsets of consecutive entries in a matrix ... Read More
Double Interpolation is a mathematical method used to calculate values within a set of data points. It is basically an advanced version of interpolation, as it is used to interpolate a function that depends on two variables. In other words, the double interpolation is a method of estimating value of a function within a set of a data points by combining two distinct interpolation processes. In this tutorial, I will explain how to calculate double interpolation using lookup table in MATLAB. But before let's get a basic overview of terms "interpolation", "double interpolation", and "lookup table". What is Interpolation? ... Read More
In this article, you will learn how to shuffle an array in the Swift language. In Swift, you can use the shuffle() and shuffled() methods to shuffle the array elements. shuffle() The shuffle() method shuffles the elements of the collection in place, so the original array is modified. shuffled() If you want to create a shuffled copy of the array instead of modifying the original array, you can use the shuffled() method from the Sequence protocol. Here is an example of how to use shuffle() to shuffle the array elements Algorithm Step 1 - Create an input array Step ... Read More
This article will explain how you can make an attributed string in the Swift language. What are the steps to apply different attributes to a string in Swift? In Swift, we use the NSAttributedString class to make an attributed string. In Swift, NSAttributedString is a class used to create and manage attributed strings. An attributed string is a string that has additional attributes, such as text color, font, and style, applied to parts of the string. This article will show different use cases for an attributed string. Basic Setup import UIKit class TestController: UIViewController { private ... Read More
You can change the font size of a UILabel in Swift by setting the font property of the UILabel to a UIFont object with the desired point size. Here is the code for the basic setup import UIKit class TestController: UIViewController { private let messageLabel = UILabel() override func viewDidLoad() { super.viewDidLoad() initialSetup() } ... Read More
In this article, you will learn how to add the number of days to a date in the Swift language. Many times, you might need to modify the date by changing some number of days, weeks, months, etc. Swift provides an in-built concept for adding a component to date. Let's see some examples. Let's take a brief look at a few of the common concepts that will be used in these examples. Calendar Class The Calendar class in Swift is a class that represents a calendar, which is a system for organizing dates. It is used to perform calendar-related calculations, ... Read More
In iOS development, this error frequently occurs while working on user interfaces. Also, you can reduce the chances of coming across this error if you write code carefully. Let's understand what this error is all about. It will help you to understand the reason behind this error if you read the error statement. The error "This application is modifying the autolayout engine from a background thread" is caused when an application attempts to make changes to the user interface from a background thread, which is not allowed in iOS development. Autolayout is a system for defining the layout of user ... Read More