![]() ![]() In WinRAR’s Options tab, the “Delete mode” option was grayed out in RAR5, but I was OK with what I believe was its default “Delete files” option. The purpose of delta compression was said to be to “Allow WinRAR to improve compression of structured table data using an algorithm specially optimized for this data type.” I was not sure I had much data of that type, but there appeared to be no drawback to checking that option, so I did. Of the options discussed there, only delta and 32-bit executable compression options were available in RAR5. The documentation said it was usually best not to change these. In WinRAR’s Advanced tab, I left all boxes unchecked except “Wait if other WinRAR copies are active.” The “When done” option defaulted to “Keep PC running.” The Compression button led to advanced compression parameters. For “Update mode,” I used the default: “Add and replace files.” For “Archiving options,” in this test, I checked only the “Create solid archive” box. I did not use the “Split to volumes” or “Set password” options. But when I tried it, despite not having much of a workload running, I got an error indicating that there was not enough RAM – so I used the 256MB setting instead. I liked to believe that, with 32GB RAM, I would have plenty for the 512MB dictionary setting. The documentation said that a dictionary size larger than the recommended 32MB or 64MB would produce better but slower compression and would require about 6x as much memory – so, for example, choosing a 1GiB dictionary would require 6GiB of free RAM. The “Compression method” setting in the General tab was yet to be determined for now, I left it at Normal. In WinRAR’s General tab, for best compression, what appeared to be the best available WinRAR documentation recommended using the RAR5 option (confusingly labeled as simply “RAR”), rather than the older RAR4 or ZIP options. The following paragraphs discuss the settings in the Test profile that I used for this post’s benchmarking. In this discussion, I used the approach of opening WinRAR by right-clicking on a file in Windows File Explorer and choosing the WinRAR option. There were different ways to view WinRAR’s options. That section discusses additional WinRAR features (e.g., recovery record) and concludes that, for my purposes, the best results came from a combination of Borg’s lz4 algorithm plus WinRAR’s Fast setting. The last section of this post turns to a study of WinRAR compression of files produced by the Borg deduplicating program. It appeared that WinRAR’s creators should review the program’s calibration – and perhaps boil the six compression levels down to four (e.g., Best, Normal, Fastest, and Store) – so as to establish real and useful differences among the available settings. ![]() In short, there were some notable irregularities in the effectiveness of WinRAR compression. Media (i.e., video, audio, image) files generally achieved only 1-2% additional compression from Fast rather than Fastest compression. eml) could benefit from those higher settings to a lesser degree. Files that were mostly but not entirely text (e.g. Pure text files were the primary exception: higher settings could produce as much as roughly 1% of additional (though potentially very much slower) compression. (Note also an earlier comparison against 7-zip.)Īs detailed below, my study of a number of common Windows filetypes yielded the conclusion that there was virtually no benefit from using any WinRAR compression setting more intensive than Fast. This post attempts to answer that question. I had been using WinRAR for some time but aside from one brief prior inquiry, I had not made any serious effort to figure out which WinRAR settings produced the best results for my purposes. I was using WinRAR 6.11 圆4 on a Windows 10 Pro system with an Intel Core i7-4790 CPU and 32GB DDR3 RAM.
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![]() If you are not seeing your contributions on your graph, check that you are meeting all conditions, and be aware that it may be an issue with your email address used/not used correctly in the GitHub Desktop you use for version control on your local development environment. After I fixed the email issue, all of those commits showed my avatar.Īfter I fixed the email issue, all of those commits showed my avatar, As you can see in below image. The image above shows a portion of the commit history for one of my repositories. Data tip: You can change the name of a forked repo and it will still be connected to the central repo from which it was forked. Use the fork button to create your a fork of the repo in your account. How to know if this is the issue you're facing?Ĭheck your commit history for one of your repositories, If you don't see your avatar on your commits next to different commits, but you have avatar on your GitHub profile, you're probably not using the correct email for your commits. Challenge: fork the Earth Lab 14ers repo. ![]() I ran this script on each of my repositories to update the user info to the correct email address, voila! my commits were showing on the graph! Once I figured out the cause of the issue, I needed to fix my contributions graph so all of my commits will be back on my graph. Now my cloned repo looks just like the upstream repository. If you're experiencing the same issue head over to the options tab in GitHub Desktop and make sure your desktop email is similar to your GitHub account. The commits that are different from my fork are now in separate branches in my local environment. My GitHub email looked like My GitHub Desktop email was was the issue incorrect email!.The issue I was experiencing was with the GitHub Desktop, email address wasn't matching with my GitHub account. The email address used for the commits is associated with your GitHub account So after going through this GitHub doc, I found that the actual issue was with the Condition 1. The commits were made in a standalone repository, not a fork.The email address used for the commits is associated with your GitHub account.The tutorial will introduce the basics of working with Git and GitHub, including installing a text editor, creating a branch, making a commit, pushing to, and opening a pull request. There's the official GitHub article on Why are my contributions not showing up on my profile?Ĭommits will appear on your contributions graph if they meet all of the following conditions: After installing GitHub Desktop and signing into GitHub or GitHub Enterprise you can create and clone a tutorial repository. So recently, I started using GitHub after building projects & after pushing my code on GitHub I was having an issue with my contributions graph - All of my commits were not showing up.Īfter lots of googling, support emails & help from people who are knowledgeable about git on discord community I figured out the issue. ![]() This online demonstration of an adjustable triangular prism is a good example to see the relationship between the object's height, lengths, and surface area. The formula for surface area of a triangular prism is actually a combination of the formulas for its triangular bases and rectangular sides. So calculate the triangle part of the surface area now: There are two triangles for its base (Front + Back). We'll first divide up the steps to illustrate the concept of finding surface area, and then we'll give you the surface area of a triangular prism formula.įind the surface area of the following triangular prism. Let's try to find the surface area of a triangular prism and take a look the prism below. You can easily see how the surface area requires all the sides' area to be found and how it represents the total area surrounding the 3D figure. A good way to picture how this works is to use a net of a 3D figure. We were thinking that maybe you want the faces of your prism to be squares where the side length of the triangle. Im stumped Normal when optimizing volume, you want the shape to be as close to a sphere or a cube as possible. The total surface area of a triangular prism is equal to the sum of twice the base area and thrice the product of a triangular base with the prism’s length. ![]() In order to find the surface area, the area of each of these sides and faces will have to be calculate and then added together. In other words, how do you find the dimensions of a triangular prism with a volume of 350 mL and minimum surface area. So what is surface area?ģD objects have surface areas, which is the sum of the total area of the object's sides and faces. How to find the surface area of a triangular prismĪrea helps us find the amount of space contained on a 2D figure. Today we're going to focus on triangular prisms, that is, a prism with a polygonal base that has 3 sides. For example, we can have pentagonal prisms and square prisms. The naming convention for prisms is to name the prism after the shape of its base. If it's connected by parallelograms, it's called an oblique prism. Example: What is the volume of a prism where the base area is 25 m 2 and which is 12 m long: Volume Area × Length. If it's connected with rectangular surfaces (its sides are made of rectangles), it's called a right prism. Next, find the area of the two triangular faces, using the formula for the area of a triangle: 1/2 base x height. Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. They have polygonal bases on either sides which are connected to each other by rectangular or parallelogram surfaces. Here are the steps to compute the surface area of a triangular prism: 1. Prisms are 3D shapes made of surfaces that are polygonal. The total surface area is the sum of these. The lateral faces (or sides) are rectangles. A right prism is composed of a set of flat surfaces. To understand what a triangular prism is, let's start with the definition of prisms. Try this Change the height and dimensions of the triangular prism by dragging the orange dots. 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