Unlike the software developed for Windows system, most of the applications installed in Mac OS X generally can be removed with relative ease. RoboPostman 1.3.1 is a third party application that provides additional functionality to OS X system and enjoys a popularity among Mac users. However, instead of installing it by dragging its icon to the Application folder, uninstalling RoboPostman 1.3.1 may need you to do more than a simple drag-and-drop to the Trash.
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When installed, RoboPostman 1.3.1 creates files in several locations. Generally, its additional files, such as preference files and application support files, still remains on the hard drive after you delete RoboPostman 1.3.1 from the Application folder, in case that the next time you decide to reinstall it, the settings of this program still be kept. But if you are trying to uninstall RoboPostman 1.3.1 in full and free up your disk space, removing all its components is highly necessary. Continue reading this article to learn about the proper methods for uninstalling RoboPostman 1.3.1.
Manually uninstall RoboPostman 1.3.1 step by step:
Most applications in Mac OS X are bundles that contain all, or at least most, of the files needed to run the application, that is to say, they are self-contained. Thus, different from the program uninstall method of using the control panel in Windows, Mac users can easily drag any unwanted application to the Trash and then the removal process is started. Despite that, you should also be aware that removing an unbundled application by moving it into the Trash leave behind some of its components on your Mac. To fully get rid of RoboPostman 1.3.1 from your Mac, you can manually follow these steps:
1. Terminate RoboPostman 1.3.1 process(es) via Activity Monitor
Before uninstalling RoboPostman 1.3.1, you’d better quit this application and end all its processes. If RoboPostman 1.3.1 is frozen, you can press Cmd +Opt + Esc, select RoboPostman 1.3.1 in the pop-up windows and click Force Quit to quit this program (this shortcut for force quit works for the application that appears but not for its hidden processes).
Open Activity Monitor in the Utilities folder in Launchpad, and select All Processes on the drop-down menu at the top of the window. Select the process(es) associated with RoboPostman 1.3.1 in the list, click Quit Process icon in the left corner of the window, and click Quit in the pop-up dialog box (if that doesn’t work, then try Force Quit).
2. Delete RoboPostman 1.3.1 application using the Trash
First of all, make sure to log into your Mac with an administrator account, or you will be asked for a password when you try to delete something.
Open the Applications folder in the Finder (if it doesn’t appear in the sidebar, go to the Menu Bar, open the “Go” menu, and select Applications in the list), search for RoboPostman 1.3.1 application by typing its name in the search field, and then drag it to the Trash (in the dock) to begin the uninstall process. Alternatively you can also click on the RoboPostman 1.3.1 icon/folder and move it to the Trash by pressing Cmd + Del or choosing the File and Move to Trash commands.
For the applications that are installed from the App Store, you can simply go to the Launchpad, search for the application, click and hold its icon with your mouse button (or hold down the Option key), then the icon will wiggle and show the “X” in its left upper corner. Click the “X” and click Delete in the confirmation dialog.
Download Mac App Remover3. Remove all components related to RoboPostman 1.3.1 in Finder
Though RoboPostman 1.3.1 has been deleted to the Trash, its lingering files, logs, caches and other miscellaneous contents may stay on the hard disk. For complete removal of RoboPostman 1.3.1, you can manually detect and clean out all components associated with this application. You can search for the relevant names using Spotlight. Those preference files of RoboPostman 1.3.1 can be found in the Preferences folder within your user’s library folder (~/Library/Preferences) or the system-wide Library located at the root of the system volume (/Library/Preferences/), while the support files are located in '~/Library/Application Support/' or '/Library/Application Support/'.
Open the Finder, go to the Menu Bar, open the “Go” menu, select the entry:|Go to Folder.. and then enter the path of the Application Support folder:~/Library
Search for any files or folders with the program’s name or developer’s name in the ~/Library/Preferences/, ~/Library/Application Support/ and ~/Library/Caches/ folders. Right click on those items and click Move to Trash to delete them.
Meanwhile, search for the following locations to delete associated items:
- /Library/Preferences/
- /Library/Application Support/
- /Library/Caches/
Besides, there may be some kernel extensions or hidden files that are not obvious to find. In that case, you can do a Google search about the components for RoboPostman 1.3.1. Usually kernel extensions are located in in /System/Library/Extensions and end with the extension .kext, while hidden files are mostly located in your home folder. You can use Terminal (inside Applications/Utilities) to list the contents of the directory in question and delete the offending item.
4. Empty the Trash to fully remove RoboPostman 1.3.1
If you are determined to delete RoboPostman 1.3.1 permanently, the last thing you need to do is emptying the Trash. To completely empty your trash can, you can right click on the Trash in the dock and choose Empty Trash, or simply choose Empty Trash under the Finder menu (Notice: you can not undo this act, so make sure that you haven’t mistakenly deleted anything before doing this act. If you change your mind, before emptying the Trash, you can right click on the items in the Trash and choose Put Back in the list). In case you cannot empty the Trash, reboot your Mac.
Download Mac App RemoverTips for the app with default uninstall utility:
You may not notice that, there are a few of Mac applications that come with dedicated uninstallation programs. Though the method mentioned above can solve the most app uninstall problems, you can still go for its installation disk or the application folder or package to check if the app has its own uninstaller first. If so, just run such an app and follow the prompts to uninstall properly. After that, search for related files to make sure if the app and its additional files are fully deleted from your Mac.
Automatically uninstall RoboPostman 1.3.1 with MacRemover (recommended):
No doubt that uninstalling programs in Mac system has been much simpler than in Windows system. But it still may seem a little tedious and time-consuming for those OS X beginners to manually remove RoboPostman 1.3.1 and totally clean out all its remnants. Why not try an easier and faster way to thoroughly remove it?
If you intend to save your time and energy in uninstalling RoboPostman 1.3.1, or you encounter some specific problems in deleting it to the Trash, or even you are not sure which files or folders belong to RoboPostman 1.3.1, you can turn to a professional third-party uninstaller to resolve troubles. Here MacRemover is recommended for you to accomplish RoboPostman 1.3.1 uninstall within three simple steps. MacRemover is a lite but powerful uninstaller utility that helps you thoroughly remove unwanted, corrupted or incompatible apps from your Mac. Now let’s see how it works to complete RoboPostman 1.3.1 removal task.
1. Download MacRemover and install it by dragging its icon to the application folder.
2. Launch MacRemover in the dock or Launchpad, select RoboPostman 1.3.1 appearing on the interface, and click Run Analysis button to proceed.
3. Review RoboPostman 1.3.1 files or folders, click Complete Uninstall button and then click Yes in the pup-up dialog box to confirm RoboPostman 1.3.1 removal.
The whole uninstall process may takes even less than one minute to finish, and then all items associated with RoboPostman 1.3.1 has been successfully removed from your Mac!
Benefits of using MacRemover:
Sixtyfour 1 7 2. MacRemover has a friendly and simply interface and even the first-time users can easily operate any unwanted program uninstallation. With its unique Smart Analytic System, MacRemover is capable of quickly locating every associated components of RoboPostman 1.3.1 and safely deleting them within a few clicks. Thoroughly uninstalling RoboPostman 1.3.1 from your mac with MacRemover becomes incredibly straightforward and speedy, right? You don’t need to check the Library or manually remove its additional files. Actually, all you need to do is a select-and-delete move. As MacRemover comes in handy to all those who want to get rid of any unwanted programs without any hassle, you’re welcome to download it and enjoy the excellent user experience right now!
This article provides you two methods (both manually and automatically) to properly and quickly uninstall RoboPostman 1.3.1, and either of them works for most of the apps on your Mac. If you confront any difficulty in uninstalling any unwanted application/software, don’t hesitate to apply this automatic tool and resolve your troubles.
Download Mac App Remover
Return to the Lessons Index | Do the Lessons in Order | Print-friendly page |
Composition of Functions:
Composing Functions at Points (page 2 of 6)
Composing Functions at Points (page 2 of 6)
Sections: Composing functions that are sets of point, Composing functions at points, Composing functions with other functions, Word problems using composition, Inverse functions and composition
Suppose you are given the two functions f (x) = 2x + 3 and g(x) = –x2 + 5. Composition means that you can plug g(x) into f (x). This is written as '( fog)(x)', which is pronounced as 'f-compose-g of x'. And '( fog)(x)' means ' f (g(x))'. That is, you plug something in for x, then you plug that value into g, simplify, and then plug the result into f. The process here is just like what we saw on the previous page, except that now we will be using formulas to find values, rather than just reading the values from lists of points.
- Given f(x) = 2x + 3 and g(x) = –x2 + 5, find (gof )(1).
When I work with function composition, I usually convert '( fog)(x)' to the more intuitive ' f (g(x))' form. This is not required, but I certainly find it helpful. In this case, I get:
(gof )(1) = g( f(1)) Script writer online.
This means that, working from right to left (or from the inside out), I am plugging x = 1 into f(x), evaluating f(x), and then plugging the result into g(x). I can do the calculations bit by bit, like this: Sincef(1) = 2(1) + 3 = 2 + 3 = 5, and since g(5) = –(5)2 + 5 = –25 + 5 = –20, then (gof )(1) = g( f(1)) = g(5) = –20. Doing the calculations all together (which will be useful later on when we're doing things symbolically), it looks like this:
(gof )(1) = g( f (1))
= g(2( ) + 3) .. setting up to insert the original input
= g(2(1) + 3)
= g(2 + 3)
= g(5)
= –( )2 + 5 .. setting up to insert the new input
= –(5)2 + 5
= –25 + 5
= –20
= g(2( ) + 3) .. setting up to insert the original input
= g(2(1) + 3)
= g(2 + 3)
= g(5)
= –( )2 + 5 .. setting up to insert the new input
= –(5)2 + 5
= –25 + 5
= –20
Note how I wrote each function's rule clearly, leaving open parentheses for where the input (x or whatever) would go. This is a useful technique. Whichever method you use (bit-by-bit or all-in-one), the answer is:
(gof )(1) = g( f (1)) = –20
Robopostman 1 2 3/4
I just computed (gof )(1); the composition can also work in the other order:
Robopostman 1 2 3 =
- Given f(x) = 2x + 3 and g(x) = –x2 + 5, find ( fog)(1).
First, I'll convert this to the more intuitive form, and then I'll simplify:
( fog)(1) = f (g(1))
Working bit-by-bit, since g(1) = –(1)2 + 5 = –1 + 5 = 4, and since f(4) = 2(4) + 3 = 8 + 3 = 11, then ( fog)(1) = f (g(1)) =f(4) = 11. On the other hand, working all-in-one (right to left, or from the inside out), I get this:
( fog)(1) = f (g(1))
= f (–( )2 + 5) .. setting up to insert the original input
= f (–(1)2 + 5)
= f (–1 + 5)
= f (4)
= 2( ) + 3 .. setting up to insert the new input
= 2(4) + 3
= 8 + 3
= 11
= f (–( )2 + 5) .. setting up to insert the original input
= f (–(1)2 + 5)
= f (–1 + 5)
= f (4)
= 2( ) + 3 .. setting up to insert the new input
= 2(4) + 3
= 8 + 3
= 11
Either way, the answer is: Copyright © Elizabeth Stapel 2002-2011 All Rights Reserved
( fo g)(1) = f (g(1)) = 11
A verbal note: 'fog' is not pronounced as 'fogg' and 'gof ' is not pronounced as 'goff'. They are pronounced as 'f-compose-g' and 'g-compose-f', respectively. Don't make yourself sound ignorant by pronouncing these wrongly!
As you have seen above, you can plug one function into another. You can also plug a function into itself:
- Given f(x) = 2x + 3 and g(x) = –x2 + 5, find ( fof )(1).
( fof )(1) = f ( f (1))
= f (2( ) + 3) .. setting up to insert the original input
= f (2(1) + 3)
= f (2 + 3)
= f (5)
= 2( ) + 3 .. setting up to insert the new input
= 2(5) + 3
= 10 + 3
= 13
= f (2( ) + 3) .. setting up to insert the original input
= f (2(1) + 3)
= f (2 + 3)
= f (5)
= 2( ) + 3 .. setting up to insert the new input
= 2(5) + 3
= 10 + 3
= 13
1 2 3-propanetriamine
- Givenf(x) = 2x + 3 and g(x) = –x2 + 5, find (gog)(1).
(gog)(1) = g(g(1))
= g(–( )2 + 5) .. setting up to insert the original input
= g(–(1)2 + 5)
= g(–1 + 5)
= g(4)
= –( )2 + 5 .. setting up to insert the new input
= –(4)2 + 5
= –16 + 5
= –11
= g(–( )2 + 5) .. setting up to insert the original input
= g(–(1)2 + 5)
= g(–1 + 5)
= g(4)
= –( )2 + 5 .. setting up to insert the new input
= –(4)2 + 5
= –16 + 5
= –11
In each of these cases, I wrote out the steps carefully, using parentheses to indicate where my input was going with respect to the formula. If it helps you to do the steps separately, then calculate g(1) outside of the other g(x) as a separate step. That is, do the calculations bit-by-bit, first finding g(1) = 4, and then plugging 4 into g(x) to get g(4) = –11.
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1 2 3-triaminopropane
Cite this article as: | Stapel, Elizabeth. 'Composing Functions at Points.' Purplemath. Available from https://www.purplemath.com/modules/fcncomp2.htm. Accessed [Date] [Month] 2016 |