Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited. With the possibility of undo, users can explore and work without fear of making mistakes, because they can easily be undone. The expectations for undo are easy to understand: to have a predictable functionality, and to include all "undoable" commands. Usually undo is available until the user undoes all executed operations. But there are some actions which are not stored in the undo list, and thus they cannot be undone. For example, save file is not undoable, but is queued in the list to show that it was executed. Another action which is usually not stored, and thus not undoable, is scrolling or selection. The opposite of undo is redo. The redo command reverses the undo or advances the buffer to a more recent state. The common components of undo functionality are the commands which were executed of the user, the history buffer(s) which stores the completed actions, the undo/redo manager for controlling the history buffer, and the user interface for interacting with the user. In most Microsoft Windows applications, the keyboard shortcut for the undo command is Ctrl+Z or Alt+Backspace, and the shortcut for redo is Ctrl+Y or Ctrl+Shift+Z. In most Apple Macintosh applications, the shortcut for the undo command is Command-Z, and the shortcut for redo is Command-Shift-Z. On all platforms, the undo/redo functions can also be accessed via the Edit menu. (Wikipedia).
Learn step by step how to find the inverse of an equation, then determine if a function or not
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Learn how to identify the inverse of a function and graph
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Finding the inverse of a function- Free Online Tutoring
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Step by step algorithm for finding the inverse of a function
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Learn how to find inverse of a function and determine if the inverse is a function or not
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Learn how to find the inverse of a linear equation step by step
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Write the inverse of a linear equations
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Step by step learn how to write the inverse of a function and determine if a function or not
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
What is the inverse of a function and how do you find it
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Goo Ishikawa: Singularities of tangent surfaces and generalised frontal
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Algebraic and Complex Geometry
Lecture 14: Document Architecture
Lecture 14 of Stanfordβs Spring 2021 iteration of its CS193p course begins with an overview of the App and Scene protocols. We then discuss WindowGroup, @SceneStorage and @ScaledMetric in more depth, before moving on to a demo in which we use these these APIs to restructure our EmojiArt ap
From playlist CS193P Spring 2021
!!Con 2018: Undo all the things! by Tom Ballinger
Undo all the Things by Tom Ballinger
From playlist !!Con 2018
Master Solving two step equations
Subscribe! http://www.freemathvideos.com Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter and section. The purpose of posting my free video tutorials is to not only help students but allow teachers the resources to flip their classro
From playlist Linear Equations #Master
John Fultz In this talk Director of User Interface Technology John Fultz demonstrates advancements to the user interface for the Mathematica 10 front end, including multiple undo, cloud integration, PDF export, and more.
From playlist Wolfram Technology Conference 2014
RailsConf 2018: Building a Collaborative Text Editor by Justin Weiss
RailsConf 2018: Building a Collaborative Text Editor by Justin Weiss Have you ever clicked "Save" on a document, and caused a coworker to lose hours of work? Or spent more time coordinating "Who has permission to edit" in Slack than you did actually writing the document? Google-Docs-styl
From playlist RailsConf 2018
The Most Beautiful Statement on the Importance of Inverse Operations
The Fundamental Theorem of Calculus is one of the most difficult mathematical theorems to understand and truly appreciate. This video shows how the FTC is just an extension of everything else we learn how to do in math: we learn how to do something, then we learn how to undo it. If you l
From playlist Summer of Math Exposition Youtube Videos
Reverse scale factors GCSE IGCSE Maths
Support me on Patreon: https://www.patreon.com/mathsaurus Using scale factors in reverse (dividing by the scale factor) and solving harder problems Visit http://www.mathsaurus.com/ for more free GCSE and A-level maths videos and resources Visit the Mathsaurus Amazon shop at https://www
From playlist GCSE IGCSE Scale factors
Ex: Solve a Two Step Equation ax-b=c (Fraction Answer)
This video explains how to solve a two step equation. The solution is checked. http://mathispower4u.com
From playlist Solving Two-Step Equations
Step by Step process to find the inverse of a linear function
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that whe
From playlist Find the Inverse of a Function
Introduction Into Solving One Step Equations
π Learn how to solve one step linear equations. By one step we mean equations that take one step to solve. The one step is the inverse operation needed to isolate the variable such as addition, subtraction, division and multiplication but here we will only focus on undoing multiplication
From playlist Solve One and Two Step Equations