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Big Data Big data alludes to the enormous volume, variety, and velocity of data created from different sources, including web−based entertainment, sensors, and cell phones, and that's just the beginning. The expression "big" includes the sheer volume of data and addresses the data's intricacy and variety. Big data is portrayed by its three V's − Volume Big data includes a huge amount of data that outperforms the handling abilities of conventional data set systems. The scale goes from terabytes (~ all of your PC extra room) to exabytes (~ all of your extra room X a million) and then some. ... Read More
Electric motors are present in the industry to help us to drive a lot of numbers of mechanical loads in the industry. They have a moving and stationary part to interact with the magnetic field and current to transform electric energy into mechanical energy. They have dominated the industry from automobiles to robotics and household to industrial applications. In this tutorial, we will explore the important differences between a reluctance motor and an induction motor. The most fundamental difference between a reluctance motor and an induction motor is that a reluctance motor operates on the principle of magnetic reluctance while ... Read More
In this tutorial, we will discuss two important functions namely, "inv()" and "pinv()", used for matrix inversion in MATLAB. Since, the fundamental purpose of both the functions is the same, i.e. matrix inversion, but they are different from each other in many aspects. Hence, we will learn the important differences between 'inv()' and 'pinv()' functions. What is 'inv()' Function? In MATLAB, the 'inv()' function is a built-in function used to calculate the inverse of a non-singular square matrix. Therefore, if 'M' is a non-singular square matrix, then the function 'inv(M)' will return a new matrix 'B' for which 'I = ... Read More
In mathematics, there are two operations namely, convolution and correlation used to manipulate two functions to produce a third function. Both operations play a vital role in various fields such as digital signal processing, digital image analysis processing, solving complex mathematical problems and many more. Convolution and correlation are also used to extract information and patterns in the field of data science. However, there are various significant differences between convolution and correlation. The most fundamental difference between convolution and correlation is that convolution is a mathematical operation used to combine two functions to produce a new function, while correlation is ... Read More
To make text bold in HTML, use the … tag or … tag. Both the tags have the same functioning, but tag adds semantic strong importance to the text. The tag is a physical markup element, but do not add semantic importance.Just keep in mind that you can get the same result in HTML with CSS font-weight property.ExampleYou can try to run the following code to make text bold in HTML using … tagLive Demo HTML text bold Our Products Developed ... Read More
In this tutorial, we will learn to check whether a checkbox is checked in JavaScript. The checkbox is the input type in the HTML, which works as the selection box. The radio buttons which belong to the same group allow users to select only one value. Still, the checkbox which belongs to the same group allows users to select multiple values. Also, you have many uses of checkboxes in your mind yourself. The HTML can add a checkbox to the webpage, but to add the behaviour to the checkbox, we must use JavaScript. Programmers can add different behaviours to the ... Read More
To find whether a given string contains a number, convert it to a character array and find whether each character in the array is a digit using the isDigit() method of the Character class.ExampleLive Demopublic class ContainsExample { public static void main(String args[]){ String sample = "krishna64"; char[] chars = sample.toCharArray(); StringBuilder sb = new StringBuilder(); for(char c : chars){ if(Character.isDigit(c)){ sb.append(c); } } System.out.println(sb); } }Output64
The rowspan and colspan are the attributes of tag. These are used to specify the number of rows or columns a cell should merge. The rowspan attribute is for merging rows and the colspan attribute is for merging columns of the table in HTML. These attributes should be placed inside the tag as shown in the image given below − Syntax Following is the syntax to merge table cells in HTML − cell data cell data Example 1 − Setting the rowspan Now let us look at an example where we set the rowspan of the ... Read More
To change the text font in HTML, use the style attribute. The style attribute specifies an inline style for an element. The attribute is used with the HTML tag, with the CSS property font-family, font-size, font-style, etc.HTML5 do not support the tag, so the CSS style is used to change font. The tag deprecated in HTML5.Just keep in mind, the usage of style attribute overrides any style set globally. It will override any style set in the HTML tag or external style sheet.ExampleYou can try to run the following code to change the font in HTMLLive ... Read More
This article discusses about how to delete an existing element in JavaScript. To remove the existing HTML elements, we first need to select the element to be deleted from the document. Then, use the methods like remove() and removeChild() in JavaScript to delete the elements from the document. We’ll discuss about both methods in this article. Using the remove() methodThe remove() method of JavaScript will remove the element from the document. The syntax for the remove method is shown below. Obj.remove(); Using removeChild() methodThe removeChild() method of JavaScript will remove the element from the document. The syntax for the ... Read More