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To get the Logarithm of the sum of exponentiations of the inputs, use the numpy.logaddexp() method in Python Numpy.Calculate log(exp(x1) + exp(x2)). This function is useful in statistics where the calculated probabilities of events may be so small as to exceed the range of normal floating-point numbers. In such cases the logarithm of the calculated probability is stored. This function allows adding probabilities stored in such a fashion.NumPy offers comprehensive mathematical functions, random number generators, linear algebra routines, Fourier transforms, and more. It supports a wide range of hardware and computing platforms, and plays well with distributed, GPU, and sparse ... Read More
Mobile phones have evolved into fundamental communication tools that are now used for more than just making phone conversations. They are now used to access the Internet, send text messages, chronicle the world, and become a part of ourselves. While using location-based services in apps like Google Maps and Uber can make our lives easier, some severe concerns are involved. To protect yourself, you must first understand what kind of location-based data you are giving online and how this data can jeopardize both your online and physical privacy.What is GPS?The global positioning system (GPS) is made up of a constellation ... Read More
To perform element-wise comparison of two string arrays using a comparison operator, use the numpy.compare_chararrays() method in Python Numpy. The arr1 and arr2 are the two input string arrays of the same shape to be compared. The 3rd parameter is rstrip, if True, the spaces at the end of Strings are removed before the comparison.NumPy offers comprehensive mathematical functions, random number generators, linear algebra routines, Fourier transforms, and more. It supports a wide range of hardware and computing platforms, and plays well with distributed, GPU, and sparse array libraries.StepsAt first, import the required library −import numpy as npCreate two One-Dimensional ... Read More
We all have come across a point in life where we have had to use a public WiFi since staying online at all times is necessary for most of us, be it in a hotel, airport, or even a café. Maybe it's because our mobile data is over, or it's just that we have trouble getting a signal there. Anyway, it's always advised to have a VPN while you use public networks since public networks are always dangerous, considering their weak security and high vulnerability to cybersecurity attacks.How Do Hackers Use Public Networks?Hackers have been known to attack public WiFi ... Read More
With a famous advertisement featured during the 1984 Super Bowl, Macintosh (commonly shortened as Mac) computers first acquired popularity among consumers. The series is still popular today, with new variants dubbed iMac for desktop computers and MacBook for laptops.While Macs are more secure than PCs, they are nevertheless and always have been vulnerable to viruses. The Mac operating system is designed to be more secure against viruses and malware, but there are still many ways for malware to get in. Another factor that protects Macs is their lower popularity than PCs; yet, this does not prevent some hackers from targeting ... Read More
WhatsApp is one of the most used messaging apps globally. Over 2 billion individuals use the instant messaging application. It was first launched in 2009. You can use WhatsApp to message, call, or video chat with pretty much anyone on the earth for free as long as you have Internet access.How Secure is WhatsApp?WhatsApp protects all communication on its platform with end-to-end encryption. Not only are these encryption keys impossible to decrypt, but they also block third parties, like WhatsApp, from accessing messages or calls. That means only you and the person or group with whom you're speaking may read ... Read More
To divide arguments element-wise, use the numpy.divide() method in Python Numpy. The arr1 is considered Dividend array. The arr2 is considered Divisor array. The output is set "float" using the "dtype" parameter.The out is a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.NumPy offers comprehensive mathematical functions, random number generators, linear algebra routines, Fourier transforms, and more. It supports a wide range ... Read More
I bet that everyone who browses on the net has seen a lot of advertisement pop-ups or redirect links or maybe something that slides into your screen. It might be something related to your previous searches, such as a bag you just saw on an online shopping platform or the ticket prices you had checked for your vacation plans. I understand how annoying it can get, especially when you’ve tried to close it many times, it just comes back to your screen again. These annoying ads and pop-ups are known as adware, also known as advertising-supported malware. Let us take ... Read More
To find the matrix product of a 2D and a 1D array, use the numpy.matmul() method in Python Numpy. If the first argument is 1-D, it is promoted to a matrix by prepending a 1 to its dimensions. After matrix multiplication the prepended 1 is removed.Returns the matrix product of the inputs. This is a scalar only when both x1, x2 are 1-d vectors. The out is a location into which the result is stored. If provided, it must have a shape that matches the signature (n, k), (k, m)->(n, m). If not provided or None, a freshly-allocated array is ... Read More
Every activity you do online is recorded and is permanent; once you're in it, there is no going back, be it a comment that you have posted on your friend's post or a photo you have shared online, everything is a part of your digital footprint. Advertisers and cybercriminals can use this information, including your IP address, usernames and passwords, and other identifying information, to create a digital trail or footprint that advertisers and cybercriminals can use to target you.So how can you delete or clean up this digital footprint of yours? We will be discussing all of it in ... Read More