Windows Calculator

General

Switch to Scientific mode

Alt + 2

All hotkeys for Windows Calculator

General
Switch to Standard mode

Alt + 1

General
Switch to Scientific mode

Alt + 2

General
Switch to Programmer mode

Alt + 3

General
Store in memory

Ctrl + M

General
Add to memory

Ctrl + P

General
Subtract from memory

Ctrl + Q

General
Recall from memory

Ctrl + R

General
Clear memory

Ctrl + L

General
Clear current input (select CE)

Del

General
Fully clear input (select C)

Esc

General
Select ±

F9

General
Select 1/x

R

General
Calculate the square root

@

General
Turn calculation history on or off

Ctrl + H

General
Move up in history list

↑

General
Move down in history list

↓

General
Clear history

Ctrl + ↑   Shift + D

Programmer mode
Select WORD

F3

Programmer mode
Select BYTE

F4

Programmer mode
Select HEX

F5

Scientific mode
Select 10x

Ctrl + G

Scientific mode
Select cosh

Ctrl + O

Scientific mode
Select sinh

Ctrl + S

Scientific mode
Select tanh

Ctrl + T

Scientific mode
Select sin-1

↑   Shift + S

Scientific mode
Select cos-1

↑   Shift + O

Scientific mode
Select tan-1

↑   Shift + T

Scientific mode
Select y?x

Ctrl + Y

Scientific mode
Select Mod

D

Scientific mode
Select log

L

Scientific mode
Select dms

M

Scientific mode
Select ln

N

Scientific mode
Select ex

Ctrl + N

Scientific mode
Select cos

O

Scientific mode
Select Pi

P

Scientific mode
Select x2

Q

Scientific mode
Select sin

S

Scientific mode
Select tan

T

Scientific mode
Select F-E

V

Scientific mode
Select Exp

X

Scientific mode
^  Select xy

Y,

Scientific mode
Select x3

#

Scientific mode
Select Int

;

Scientific mode
Select n!

!

Programmer mode
Select DWORD

F2

Programmer mode
Select DEC

F6

Programmer mode
Select OCT

F7

Programmer mode
Select BIN

F8

Programmer mode
Select QWORD

F12

Programmer mode
Select A-F

A + F

Programmer mode
Select RoL

J

Programmer mode
Select RoR

K

Programmer mode
Select Lsh

<

Programmer mode
Select Rsh

>

Programmer mode
Select Mod

%

Programmer mode
Select Or

|

Programmer mode
Select Xor

^

Programmer mode
Select Not

~

Programmer mode
Select And

&

Programmer mode
Toggle the bit value

Space

Similar combinations for other applications

Adobe Photoshop CS5 (Windows)
Choose composite channel for adjustment
Photoshop CS5 Panels - Adjustment Panel

Alt + 2

Tally 9.0 (Windows)
Duplicate Voucher
General Shortcuts

Alt + 2

Adobe Photoshop CS5 (Windows)
Choose composite channel for adjustment
Extract and Pattern Maker (plug-in) - Adjustment Panel

Alt + 2

MyLifeOrganized (Windows)
Open/close General properties
Accessing Features

Alt + 2

Smartplant Review (Windows)
View Perspective Angle toolbar
Managing Smartplan Review

Alt + 2

FreeMind 0.9.0 (Windows)
Browse mode
Mode commands

Alt + 2

Microsoft PowerPoint 2010 (Windows)
Up One Level button: Open the folder up one level above the open folder.
Manage Open and Save As dialog boxes

Alt + 2

Qt Creator (Windows)
Toggle Search Results pane
General

Alt + 2

Adobe Photoshop CC (Windows)
Choose composite channel for adjustment
Basic Shortcuts for Photoshop CC 2015 - Adjustment Panels

Alt + 2

Clink (Windows)
digit-argument
BASH (GNU Readline) Line Editing

Alt + 2

Microsoft Outlook 2016 (Windows)
Show 2 days in the calendar
Calendar

Alt + 2

Adobe Photoshop CC (Windows)
Choose composite channel for adjustment
Manage Panels - Adjustment Panels

Alt + 2

CyberLink PhotoDirector 8 (Windows)
Toggle compare mode on/off
Workspace

Alt + 2

Microsoft Excel 2016 (Windows)
Undo list (via quick access). Use Arrow Down to extend undo range.
Undo, Redo, and Repeat Action

Alt + 2

BrainSuite (Windows)
Rotate 3D view to xy view (axial, from inferior)
Orthogonal Views

Alt + 2

BrainSuite (MacOS)
Rotate 3D view to xy view (axial, from inferior)
Orthogonal Views

Alt + 2

Microsoft Teams (Windows)
Open Chat
Navigation Shortcuts

Alt + 2

Houdini (Windows)
Network view
Main Menu

Alt + 2

Lightworks (Windows)
Enable Twin Playing
31 Shortcuts for Lightworks (Windows)

Alt + 2

Soundforge (Windows)
Show/set input focus to the File Properties window
Magnification and View

Alt + 2

MetaTrader MT4 (Windows)
Display Chart as Sequence of Candlesticks
Miscellaneous Shortcuts

Alt + 2

Vegas Pro 14 (Windows)
Show Trimmer window
Magnification and View

Alt + 2

Maxthon (Web Application)
Save the current form data as default
Forms

Alt + 2

Synfig (Windows)
Toggle display of "Vertex" Handles
73 Shortcuts for Synfig (Windows)

Alt + 2

CuteFTP (Windows)
Hide or display individual log window (same as F12)
General

Alt + 2

winIDEA
Open Output window
View

Alt + 2

CuteFTP (MacOS)
Hide or display individual log window (same as F12)
72 Shortcuts for CuteFTP (MacOS)

Alt + 2

Zwift (PC and macOS)
Click 2nd item in list
Search screen

Alt + 2

PSPad (Windows)
FileTab2
Window

Alt + 2

FEKO (Windows)
PREFEKO
Component Launch

Alt + 2

FEKO (Linux)
PREFEKO
Component Launch

Alt + 2

Vectorworks (Windows)
Double Line
Basic Palette

Alt + 2

VariCAD (Windows)
Switch to 2D
Hot Keys

Alt + 2

Modo (Windows)
Convert selection to edges
Selection (Modelling)

Alt + 2

GibbsCAM (Windows)
Chamfer
Gecometry Expert

Alt + 2

Foxit Reader (Windows)
Full Screen
30 Shortcuts for Foxit Reader (Windows)

Alt + 2

Foxit Reader (Linux)
Full Screen
30 Shortcuts for Foxit Reader (Linux)

Alt + 2

DaVinci Resolve 14 (Windows)
Track Destination Selection V2
Track Destination Selection

Alt + 2

GeoGebra
to the power of 2
Windows shortcuts

Alt + 2

KeyCreator (Windows)
Front View
View Shortcuts

Alt + 2

KiCad 5.0.2
Switch Grid To Fast Grid2
Pcbnew

Alt + 2

SAP NetWeaver Business Client 5.0 for Desktop
Focus on Content Area
General

Alt + 2

Feedreader
Switch to wide view
General

Alt + 2

Adobe Illustrator
Insert trademark symbol
Work with type

Alt + 2

Atom (Windows)
pane:show-item-2
All shortcuts

Alt + 2

Black Desert Online
All chat
Chat controls

Alt + 2

Unreal Engine
Wireframe view mode
Viewport commands

Alt + 2

1Password
View all your items.
1Password mini

Alt + 2

Aegisub
Set the secondary (karaoke) fill color (\2c) at the cursor position
Subtitle edit box

Alt + 2

Bluebeam Revu
Sets tab
Show tabs

Alt + 2

Kindle for PC
Two-Column
While Reading a Book

Alt + 2

Virtual DJ 2018
Go to cue 2
General

Alt + 2

Oracle PeopleTools
Returns to the search page from the transaction page.
General

Alt + 2

E-Sword
Bookmark 2
General

Alt + 2

Microsoft FrontPage
Up One Level button: Open the folder one level above the open folder.
Access and use Open and Save As dialog boxes

Alt + 2

Adobe Premiere Pro (Windows)
Focus on Outgoing Side
Trim Monitor panel

Alt + 2

Mp3tag
Filename - Tag
Convert

Alt + 2

Adobe Photoshop CC
Choose composite channel for adjustment
Using adjustment layers

Alt + 2

Keyboard symbols
☻ (smiley symobl)
Other symbols

Alt + 2

MindMeister
Show 2 levels
More shortcuts

Alt + 2

Qt Creator
Toggle Search Results pane
General

Alt + 2

REAPER
Mode: Drum Map
Section: MIDI Event List Editor

Alt + 2

NewsBin Pro
Toggle upper panes (only available in Version 4)
General

Alt + 2

Microsoft Visual Studio 2017 (All shortcuts)
TeamFoundationContextMenus.Commands.GoToTeamExplorerSection2Content
Team Explorer

Alt + 2

Freemind
Browse mode
Mode commands

Alt + 2

Maxthon
Save the current form data as default
Forms

Alt + 2

Lightworks
Enable twin playing
General

Alt + 2

WinMerge
Goto Bookmark 2
Bookmarks

Alt + 2

Outlook 2016 and Outlook 2013
Show two days in the calendar
Calendar

Alt + 2

GOM Player
(numpad) Decrease vertical spacing
Subtitles

Alt + 2

PeaZip
Toggle tool bar
Bars

Alt + 2

MusicBee
Rating Selected Tracks: 2 stars
General

Alt + 2

Foxit PDF Reader 2.0
Full Screen
View shortcuts

Alt + 2

Everything
Resize the window to 640 x 497
General keyboard shortcuts

Alt + 2

Skype
Navigate to contacts
Skype for Windows 10

Alt + 2

Windows Media Player 11
Zoom Videos to 100 percent
Play videos with shortcuts

Alt + 2

Facebook (Chrome)
Timeline
Access Keys

Alt + 2

Mozilla Thunderbird
Week view
Lightning: Calendar tab

Alt + 2

Windows Media Player 11 (Windows)
Zoom Videos to 50/100/200 percent.
Play Videos with Shortcuts

Alt + 1 / Alt + 2 / Alt + 3

Adobe Photoshop CS4 (Windows)
Choose composite channel for adjustment
Shortcut Keys for using the Adjustments panel

Alt + 2

Figma
Show components
Components

Alt + 2