| Calculator | |
|---|---|
_app_icon.png){kind=icon} | |
.png) Calculator app running onmacOS Tahoe in Scientific mode | |
| Developer | Apple |
| Initial release | 1984 (withSystem 1) 2001 (withMac OS X 10.0) 2007 (withiPhone OS 1) 2015 (withwatchOS 1) 2024 (withiPadOS 18) |
| Stable release | |
| Operating system | Classic Mac OS,macOS,iOS,iPadOS,watchOS |
| Type | Calculator |
| Website | iOS:support.apple.com/en-us/guide/iphone/iph1ac0b5cc/ios macOS:https://support.apple.com/en-us/guide/calculator/welcome/mac |
Calculator is a basiccalculator application made byApple and bundled with itsmacOS,iOS,iPadOS, andwatchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys. Scientific mode supports exponents and trigonometric functions. The macOS version of Calculator also has a programmer mode that gives the user access to more options related tocomputer programming.[1]
The Calculator program has a long associated history with the beginning of theMacintosh platform, where a simple four-function calculator program was a standarddesk accessory from the earliestMac operating system versions. Though nohigher math capability was included, third-party developers provided upgrades, and Apple released theGraphing Calculator application with the firstPowerPC release (7.1.2) of the Mac OS, and it was a standard component throughMac OS 9. Apple also ships a different application with macOS calledGrapher for this purpose.[2]
The Calculator appeared first as adesk accessory infirst version ofMacintosh System for the 1984Macintosh 128K. Its original incarnation was developed byChris Espinosa and its appearance was designed, in part, bySteve Jobs when Espinosa, flustered by Jobs's dissatisfaction with all of his prototype designs, conceived an application calledThe Steve Jobs Roll Your Own Calculator Construction Set that allowed Jobs to tailor the look of the calculator to his liking.[3][4] Its design was maintained with the same basic math operations untilthe final release of classic Mac OS in 2001.[5] Later versions pay tribute toDieter Rams and theBraun design department, which influenced both Jobs and Apple designerJonathan Ive.[6][7] ADashboard Calculator widget was included in all versions of macOS fromMac OS X Tiger onwards untilMojave, after which Dashboard was discontinued. It only has the basic mode of its desktop counterpart. With the release ofOS X Yosemite, unit conversion functions were added to the Spotlight calculator,[8] as well as a simple calculator widget available in theNotification Center.[9]
A calculator function has been included with iOS since its launch oniPhone[10] andiPod Touch.[11] A native calculator function was added to theApple Watch with watchOS 6, which included a dedicated button for calculatingtips.[12] The Calculator app was not available on Apple's iPad tablet until the release ofiPadOS 18 in September 2024. In 2020, during an interview with tech YouTuberMarques Brownlee, Apple software chiefCraig Federighi said the reason the iPad lacked a calculator app was because Apple's engineers had not found a design that would "do justice" to the iPad's screen size.[13] In 2022, theWall Street Journal'sJoanna Stern asked Apple marketing chiefGreg Joswiak about the lack of a Calculator app, who responded: "There are a ton of them. Go to theApp Store."[14][15] A jailbreak tweak named "Belfry" was able to unofficially install the app, along with every other iPhone-only application, on an iPad in early 2012.[16] In 2024, Tim Cook announced that a Calculator app for iPad would be released as a part of iPadOS 18, with new features such as compatibility with theApple Pencil.[17]
Calculator hasReverse Polish notation support, and can also speak the buttons pressed and result returned.
The calculator also includes some basic conversion functions to convert between units in the following categories:
Since the release ofMac OS X Leopard, simple arithmetic functions can be calculated from theSpotlight feature.[19] They include the standard addition, subtraction, multiplication, and division operations, with exponentiation and the use of thepercent sign to denotepercentage.
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