![]() The Calculator program has a long history going back to the very beginning of the Macintosh platform, where a simple four-function calculator program was a standard desk accessory from the earliest system versions. Scientific mode supports exponents and trigonometric functions, and programmer mode gives the user access to more options related to computer programming. Basic includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys. It has three modes: basic, scientific, and programmer. If the frontmost program uses an unconventional approach to running full-screen, then go to its settings to toggle full-screen view.Calculator is a basic calculator application made by Apple Inc. Toggling this setting can spur the menu bar to reappear if a small bug has temporarily hidden it. Toggle full-screen views: In most applications that support full-screen, pressing Control-Command-F should activate this view. If your system menu bar is hanging, not present, or otherwise inaccessible, then there are several ways to go about fixing the problem. If neither of these solutions works, then it may be that that the menu bar itself is on the fritz. The process should automatically restart and load your menus again. Search for the SystemUIServer process and then click the toolbar button to force-quit it. Alternatively, you could open the Terminal, enter the command killall SystemUIServer, and press Return. To do so, open the Activity Monitor utility, choose All Processes from the View menu, and then select the SystemUIServer process and click the Force Quit button on the toolbar. So if you notice that one or more of these items is producing that spinning color wheel, you can often solve the problem by killing that process. By contrast, Apple’s status menus (such as the Wi-Fi, Volume, VPN, BlueTooth, Battery, and System Clock) are managed by a central OS X process (SystemUIServer), so they might all freeze at once. You can further check this by opening Activity Monitor to see if any hanging processes (highlighted in red text) correspond to the frozen menu item.īuilt-in status menus (blue) are managed by the SystemUIServer process, whereas third-party menus (red) run independently.īecause third-party apps like Dropbox or iStatMenus are separate programs, they tend to hang independently. If only one item produces the spinning color wheel when accessed in this manner, and the others are still functional, you’ve isolated the problem. You can determine this by hovering your mouse over each menu item for a few seconds. Whatever the specific problem, the first thing to do is to check whether the frozen menu is the result of a third-party add-on, such as Dropbox, LittleSnitch, Evernote, or the like. Here’s how to troubleshoot the problem when any of those things happen. ![]() However, there may be times when that menu bar stops working: It may disappear or stop functioning, items on it may be grayed out or frozen, or your cursor may show the spinning beach-ball when you hover your cursor over a menu bar item. The system menu bar in OS X is usually fully accessible, either by moving your mouse to the top of the screen and clicking on it or by using hotkeys.
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