Error detection and correction

Multidimensional parity-check code

A multidimensional parity-check code (MDPC) is a simple type of error correcting code that operates by arranging the message into a multidimensional grid, and calculating a parity digit for each row and column. In general, an n-dimensional parity scheme can correct n/2 errors. (Wikipedia).

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Solving a multi-step equation by multiplying by the denominator

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

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Multimeter Review / DMM Review / buyers guide / tutorial

A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=5 In this video I do a review of several digital multimeters. I compare features and functionality. I explain safety features, number of digits, display count, accuracy and resolution. Th

From playlist Multimeter reviews, buyers guide and comparisons.

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Solving a multi step equation with variables on both sides 5+3r=5r–19

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

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Solving a multi step equation with brackets and parenthesis ex 18, 7n+2[3(1–n)–2(1+n)]=14

👉 Learn how to solve multi-step equations. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get the solution. To solve a multi-step equation, we first use distribution propert

From playlist Solve Multi-Step Equations......Help!

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Multimeter Calibration - Some future testing..

A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=5 The calibration of my Major Tech MT22 raised some interesting responses so we'll take this topic a little further. I have ordered a DMMCheck and PentaRef from Voltagestandard.com.

From playlist Multimeter reviews, buyers guide and comparisons.

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When you have a variable on both sides how do you solve the equation 2m+12=3m–13

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

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Solving a multi-step equation with fractions and variable on both sides

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

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Solving an equation with variables on both side and one solution

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist Solve Multi-Step Equations......Help!

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Arrays

From playlist Week 2 2015 Shorts

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How to solve a multi step equation with rational terms - (b-4)/6 = b/2

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

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How to send a self-correcting message (Hamming codes)

A discovery-oriented introduction to error correction codes. Part 2: https://youtu.be/b3NxrZOu_CE Ben Eater:'s take: https://youtu.be/h0jloehRKas Help fund future projects: https://www.patreon.com/3blue1brown An equally valuable form of support is to simply share some of the videos. Specia

From playlist Explainers

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Multiple Dimension Error Correction - Computerphile

As communications become more complicated, the amount of bits required to succesfully correct an error increases, but by how much? Professor Brailsford talks multi-dimensional parity bits. Professor Brailsford's earlier videos: https://www.youtube.com/playlist?list=PLzH6n4zXuckpKAj1_88VS

From playlist Subtitled Films

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Lec 22 | MIT 6.451 Principles of Digital Communication II

Lattice and Trellis Codes View the complete course: http://ocw.mit.edu/6-451S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT 6.451 Principles of Digital Communication II

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5. Error correction, syndrome decoding

MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012 View the complete course: http://ocw.mit.edu/6-02F12 Instructor: George Verghese This lecture continues to explore error correction through a closer look at the generator matrix and the parity check matrix. Syndrom

From playlist MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012

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Checksums and Hamming distance

The term "checksum" can refer to all sorts of different error detection codes. How are some better than others? What types of errors are they good at detecting? And how do you calculate different types of checksums? Support these videos on Patreon: https://www.patreon.com/beneater or http

From playlist Error detection

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Math for Liberal Studies - Lecture 3.5.2 Hamming Distance

This is the second video for Math for Liberal Studies Section 3.5: Error-Correcting Codes. In this video, we discuss the Hamming distance between two binary messages. We also discuss the "minimum distance decoding method" for detecting and correcting errors.

From playlist Math for Liberal Studies Lectures

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Local Correctability of Expander Codes - Brett Hemenway

Brett Hemenway University of Pennsylvania April 14, 2014 An error-correcting code is called locally decodable if there exists a decoding algorithm that can recover any symbol of the message with high probability by reading only a small number of symbols of the corrupted codeword. There is

From playlist Mathematics

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4. Linear block codes, parity relations

MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012 View the complete course: http://ocw.mit.edu/6-02F12 Instructor: George Verghese This lecture continues to cover linear block codes. The generator matrix and matrix notation are introduced, along with examples of e

From playlist MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012

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Solve an equation for x by clearing fractions with multiple steps

👉 Learn how to solve multi-step equations with variable on both sides of the equation. An equation is a statement stating that two values are equal. A multi-step equation is an equation which can be solved by applying multiple steps of operations to get to the solution. To solve a multi-s

From playlist How to Solve Multi Step Equations with Variables on Both Sides

Related pages

Low-density parity-check code | Forward error correction | Block code | Decoding methods | Parity bit | Soft-decision decoder | Error detection and correction