Quadrilaterals | Triangle geometry
In geometry, an orthocentric system is a set of four points on a plane, one of which is the orthocenter of the triangle formed by the other three. If four points form an orthocentric system, then each of the four points is the orthocenter of the other three. These four possible triangles will all have the same nine-point circle. Consequently these four possible triangles must all have circumcircles with the same circumradius. (Wikipedia).
The Three / Four bridge in Triangle Geometry: Incentres and Orthocentres | Six 6 | Wild Egg
We look at how to cross the Three / Four bridge geometrically: in both directions. This connects with some classical triangle geometry, involving triangle centres going back to ancient Greek geometry. We will touch base with the algebraic orientation to angle bisection, modifying a little
From playlist Six: An elementary course in Pure Mathematics
Orthogonality and Orthonormality
We know that the word orthogonal is kind of like the word perpendicular. It implies that two vectors have an angle of ninety degrees or half pi radians between them. But this term means much more than this, as we can have orthogonal matrices, or entire subspaces that are orthogonal to one
From playlist Mathematics (All Of It)
How to find the orthocentre (point of concurrence of altitudes) of a triangle using a traditional compass technique within Inkscape. Visit my website www.maths-pro.com for 100s of free geometry resources.
From playlist Inkscape for teachers
Linear Algebra: Orthonormal Basis
Learn the basics of Linear Algebra with this series from the Worldwide Center of Mathematics. Find more math tutoring and lecture videos on our channel or at http://centerofmath.org/ More on unit vectors: https://www.youtube.com/watch?v=C6EYJVBYXIo
From playlist Basics: Linear Algebra
Triangle Centres (Orthocentre, Centroid & Circumcentre)
More resources available at www.misterwootube.com
From playlist Further Properties of Geometrical Figures
Orthocenters exist! | Universal Hyperbolic Geometry 10 | NJ Wildberger
In classical hyperbolic geometry, orthocenters of triangles do not in general exist. Here in universal hyperbolic geometry, they do. This is a crucial building block for triangle geometry in this subject. The dual of an orthocenter is called an ortholine---also not seen in classical hyperb
From playlist Universal Hyperbolic Geometry
Math 060 Fall 2017 111317C Orthonormal Bases
Motivation: how to obtain the coordinate vector with respect to a given basis? Definition: orthogonal set. Example. Orthogonal implies linearly independent. Orthonormal sets. Example of an orthonormal set. Definition: orthonormal basis. Properties of orthonormal bases. Example: Fou
From playlist Course 4: Linear Algebra (Fall 2017)
Orthogonal and Orthonormal Sets of Vectors
This video defines orthogonal and orthonormal sets of vectors.
From playlist Orthogonal and Orthonormal Sets of Vectors
From playlist UNSW Medicine
Trigonometry - Vocabulary of trigonometric functions
In this video will cover some of the basic vocabulary that you'll hear when working with trigonometric functions. Specifically we'll cover what is trigonometry, angles, and defining the trigonometric functions as ratios of sides. You'll hear these terms again as we dig deeper into the st
From playlist Trigonometry
Linear Algebra - Lecture 39 - Orthonormal Sets
In this lecture, we discuss orthonormal sets of vectors. We investigate matrices with orthonormal columns. We also define an orthogonal matrix.
From playlist Linear Algebra Lectures
Trigonometry 2 The Trigonometric Functions
Meet the 6 main trigonometric functions of right triangles and some of their identities.
From playlist Trigonometry
RubyConf 2022: Helping Redistrict California with Ruby by Jeremy Evans
Every 10 years, after the federal census, California and most other states redraw the lines of various electoral districts to attempt to ensure the districts are fair and have roughly equal population. California uses a system written in Ruby for citizens to apply to become redistricting c
From playlist RubyConf 2022: Mini and Houston
Operating System Full Course | Operating System Tutorials for Beginners
An operating system is system software that manages computer hardware and software resources and provides common services for computer programs. In this operating system full course you will be learning following topic in details. Hardware Resources Introduction
From playlist Operating System
DEFCON 13: Surgical Recovery from Kernel-Level Rootkit Installations
Speaker: Julian Grizzard Conventional wisdom states that once a system has been compromised, it can no longer be trusted and the only solution is to wipe the system clean and reinstall. This talk goes against the grain of conventional wisdom and asks are there more efficient ways to repa
From playlist DEFCON 13
Explainable AI - The story behind XAI in 2022 (legal, ethical, commercial, risks)
Two beautiful examples show why we need an Explainable AI (XAI) system to protect our individual freedom and human rights in a digital / AI economy. Although it will cause significant additional work for us AI coder. The story behind XAI in 2022: The problem of social media input data.
From playlist Explainable AI (XAI) and Decision Intelligence (DI). Performance on Vision.
Lecture 3, Signals and Systems: Part II | MIT RES.6.007 Signals and Systems, Spring 2011
Lecture 3, Signals and Systems: Part II Instructor: Alan V. Oppenheim View the complete course: http://ocw.mit.edu/RES-6.007S11 This video covers the unit step and impulse signals. System properties are discussed, including memory, invertibility, causality, stability, and time invariance
From playlist MIT RES.6.007 Signals and Systems, 1987
Impact of Seasonality on Bi-stable Ecosystem Dynamics by Shuaib Palathingal
PROGRAM TIPPING POINTS IN COMPLEX SYSTEMS (HYBRID) ORGANIZERS: Partha Sharathi Dutta (IIT Ropar, India), Vishwesha Guttal (IISc, India), Mohit Kumar Jolly (IISc, India) and Sudipta Kumar Sinha (IIT Ropar, India) DATE: 19 September 2022 to 30 September 2022 VENUE: Ramanujan Lecture Hall an
From playlist TIPPING POINTS IN COMPLEX SYSTEMS (HYBRID, 2022)
Presented by: Andrei Lopatenko – VP Engineering at Zillow At this talk, we will discuss the system-centric approach to the NLP. There was huge progress in NLP modeling based on transformer-based neural architectures. We will discuss how to build a large-scale NLP systems supporting high l
From playlist NLP Summit 2021
Orthonormal bases. The Gram-Schmidt Procedure. Schuur's Theorem on upper-triangular matrix with respect to an orthonormal basis. The Riesz Representation Theorem.
From playlist Linear Algebra Done Right