- published: 06 Apr 2011
- views: 276432
Lost may refer to:
Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.
The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.
In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.
Computer science is the scientific and practical approach to computation and its applications. It is the systematic study of the feasibility, structure, expression, and mechanization of the methodical procedures (or algorithms) that underlie the acquisition, representation, processing, storage, communication of, and access to information. An alternate, more succinct definition of computer science is the study of automating algorithmic processes that scale. A computer scientist specializes in the theory of computation and the design of computational systems.
Its fields can be divided into a variety of theoretical and practical disciplines. Some fields, such as computational complexity theory (which explores the fundamental properties of computational and intractable problems), are highly abstract, while fields such as computer graphics emphasize real-world visual applications. Still other fields focus on challenges in implementing computation. For example, programming language theory considers various approaches to the description of computation, while the study of computer programming itself investigates various aspects of the use of programming language and complex systems. Human–computer interaction considers the challenges in making computers and computations useful, usable, and universally accessible to humans.
Robert or Bob Smith, or similar, may refer to:
A how to video on How To Compute Voltage Drop that will improve your math skills. Learn how to get good at math from Videojug's hand-picked industry leaders. Subscribe! http://www.youtube.com/subscription_center?add_user=videojugeducation Check Out Our Channel Page: http://www.youtube.com/user/videojugeducation Like Us On Facebook! https://www.facebook.com/videojug Follow Us On Twitter! http://www.twitter.com/videojug Watch This and Other Related films here: http://www.videojug.com/film/how-to-calculate-voltage-drop
James G. Kahn MD, MPH Professor of Health Policy, Epidemiology, and Global Health at UCSF This animated video provides a thorough, technically informative, understandable, and fun introduction to DALYs and how they are used to measure the burden of disease.
Learn how to calculate total working hours using Excel formulas.
There is NO SECRET to LOSING WEIGHT. It's all about CALORIES CONSUMPTION. If you want to lose weight, the calories you burn per day needs to be more / greater than the calories you consume. If you can, grab a paper, pen and a calculator and this video will tell you EVERYTHING you need to know in regards to LOSING WEIGHT! You will discover how much your body needs a day in order to lose 5, 10, 15, or even 20 pounds and more! I have made this video as detailed and as simple to understand as possible in order for you to ACTUALLY START seeing RESULTS. Hence, the video is quite long because I want you to benefit from it. I have broken down the process into 5 SIMPLE STEPS or what I call 5As. 1) Attainable Goal - How much weight do you want to lose and by when? 2) Aware & Know Your BMR -- BM...
MIT 6.0001 Introduction to Computer Science and Programming in Python, Fall 2016 View the complete course: http://ocw.mit.edu/6-0001F16 Instructor: Dr. Ana Bell In this lecture, Dr. Bell introduces the theory of computation and explains some aspects of computational thinking. Programming languages are discussed, with an emphasis on basic Python syntax and data structures. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
OS : The underlying overhead of computation, Antti Kantee An operating system is a piece of code intended to help computer operators load punch cards -- hence "operating". The timesharing system was created to allow interactive shared access to the handful of computers which existed at the time. We will examine what is in the interactive punch card loader in 2017, what actually belongs in there, and why things are the way they are. Speaker Bio Antti Kantee has been a NetBSD committer since the 1900's and has managed to do many sorts of damage. He is probably best (or worst, depending on who you ask) known for his decade-long workhaul on rump kernels. Antti very recently moved to the Princeton area, so in case he appears particularly absent during his talk, he got lost on the way to the...
The following video explains how to calculate safety stock in order to avoid the high costs of inventory shortages and stock-outs. The video explains inventory replenishment times, daily consumption, safety stock thresholds and levels, and your company’s own time to market in terms of delivery. A graph is provided that clearly shows what the reorder point should be and what the safety stock levels should be. A working example is provided where a company tracks a number of inventory replenishment times, their own daily consumption levels, the safety stock amount they need to cover during these consumption periods and then finally, your company’s delivery times for finished goods to your customer base. http://www.driveyoursuccess.com Video provides four steps to calculate safety stock Ad...
Bay Area Lisp and Scheme Meetup http://balisp.org/ Thu 30 Nov 2017 Rigetti Computing Berkeley, CA Abstract Since the 1950s, Lisp has been used to describe and calculate in cutting-edge fields like artificial intelligence, robotics, symbolic mathematics, and advanced optimizing compilers. It is no surprise that Lisp has also found relevance in quantum computation, both in academia and industry. Hosted at Rigetti Computing, a quantum computing startup in Berkeley, Robert Smith will provide a pragmatic view of the technical, sociological, and psychological aspects of working with an interdisciplinary team, writing Lisp, to build the next generation of technology resource: the quantum computer. ABOUT THE SPEAKER: Robert has been using Lisp for over decade, and has been fortunate to work ...
Domain-specific high-productivity environments are playing an increasingly important role in scientific computing due to the increased levels of abstraction and automation they provide. In this talk we introduce Devito, an open-source domain-specific framework for solving partial differential equations from symbolic problem definitions by the finite difference method. We highlight the generation and automated execution of highly optimized stencil code from only a few lines of high-level symbolic Python for a set of operators used in seismic inversion problems, before exploring the use of Devito for a range of scientific equations.
THERCAST® (a TRANSVALOR product) Continuous casting: thermal computation In this continuous casting example, THERCAST® simulates the entire process and all its complex interactions. The cooling effects of the molds, air, rolls and sprays are clearly visible. For further information a a free test simulation please contact marketing@transvalor.com, Phone +33 (0)4 9292 4203. In diesem Beispiel eines Stranggussprozesses simuliert THERCAST den gesamten Prozess mit allen seinen komplexten Interaktionen. Die Kühleffekte von Gießform, Luft, Walzen und Sprays sind deutlich sichtbar. Für weitere Informationen oder eine kostenlose Testsimulation kontaktieren Sie bitte marketing@transvalor.com, Telefon +33 (0)4 9292 4203. Dans cet exemple de coulée continue, THERCAST simule le procédé et toutes ses ...
Just how far can we go with processing speed? Physicist Professor Phil Moriarty talks about the hard limits of computing. Technical physics (aside) video: https://youtu.be/mBdCE5hOexM https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
We have In Time & Out Time for either Day or Night Shift and we must subtract 1 hour for weekday lunch and 1/2 hour for weekend lunch. See the formula to make this calculation that uses the IF, MOD and WEEKDAY functions. In case the In Time and Out Time are blank or have the word "OFF", we will use the ISNUMBER and SUMPRODUCT to show a zero. Download file: http://people.highline.edu/mgirvin/
Computer Science may seem intellectually distant from the humanities and social sciences, but it has many close links with Philosophy in particular (as recognised by Oxford’s new degree programme), while computer modelling is becoming a vital tool for understanding political, social and economic systems. Many influential theories have been based on simplistic views of human behaviour, limited by our own analytical abilities. Yet computer models (even when coded in short programs that are easy to understand) can radically extend our powers, enabling thought-experiments whose surprising results yield important insights and refute common assumptions. Economics, especially, faces a potential revolution from this alternative methodology, which can combine objective analysis with rejection of th...
Archimedes approximated the value of Pi by starting with the fact that a regular hexagon inscribed in a unit circle has a perimeter of 6. He then found a method for finding the perimeter of a polygon with twice as many sides. Applying his method repeatedly, he found the perimeter of a 12, 24, 48, and 96 sided polygon. Using the perimeter as an approximation for the circumference of a circle he was able to derive an approximation for Pi equivalent to 3.14. This video uses a somewhat simpler method of doing the same thing and carries it out to polygons with millions of sides. All that is needed to understand the calculation is knowledge of the Pythagorean Theorem.
Using Archimedes' method of exhaustion we can derive a formula that approximates the value of π. visit my site: http://www.pythagoreanmath.com
Specific heat and phase changes: Calculating how much heat is needed to convert 200 g of ice at -10 degrees C to 110 degree steam. Watch the next lesson: https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/states-of-matter/v/chilling-water-problem?utm_source=YT&utm;_medium=Desc&utm;_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/states-of-matter/v/specific-heat-and-latent-leat-of-fusion-and-vaporization-2?utm_source=YT&utm;_medium=Desc&utm;_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high sch...
MIT 6.0001 Introduction to Computer Science and Programming in Python, Fall 2016 View the complete course: http://ocw.mit.edu/6-0001F16 Instructor: Dr. Ana Bell In this lecture, Dr. Bell introduces the theory of computation and explains some aspects of computational thinking. Programming languages are discussed, with an emphasis on basic Python syntax and data structures. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Domain-specific high-productivity environments are playing an increasingly important role in scientific computing due to the increased levels of abstraction and automation they provide. In this talk we introduce Devito, an open-source domain-specific framework for solving partial differential equations from symbolic problem definitions by the finite difference method. We highlight the generation and automated execution of highly optimized stencil code from only a few lines of high-level symbolic Python for a set of operators used in seismic inversion problems, before exploring the use of Devito for a range of scientific equations.
Computer Science may seem intellectually distant from the humanities and social sciences, but it has many close links with Philosophy in particular (as recognised by Oxford’s new degree programme), while computer modelling is becoming a vital tool for understanding political, social and economic systems. Many influential theories have been based on simplistic views of human behaviour, limited by our own analytical abilities. Yet computer models (even when coded in short programs that are easy to understand) can radically extend our powers, enabling thought-experiments whose surprising results yield important insights and refute common assumptions. Economics, especially, faces a potential revolution from this alternative methodology, which can combine objective analysis with rejection of th...
Bay Area Lisp and Scheme Meetup http://balisp.org/ Thu 30 Nov 2017 Rigetti Computing Berkeley, CA Abstract Since the 1950s, Lisp has been used to describe and calculate in cutting-edge fields like artificial intelligence, robotics, symbolic mathematics, and advanced optimizing compilers. It is no surprise that Lisp has also found relevance in quantum computation, both in academia and industry. Hosted at Rigetti Computing, a quantum computing startup in Berkeley, Robert Smith will provide a pragmatic view of the technical, sociological, and psychological aspects of working with an interdisciplinary team, writing Lisp, to build the next generation of technology resource: the quantum computer. ABOUT THE SPEAKER: Robert has been using Lisp for over decade, and has been fortunate to work ...
MIT 6.0002 Introduction to Computational Thinking and Data Science, Fall 2016 View the complete course: http://ocw.mit.edu/6-0002F16 Instructor: John Guttag Prof. Guttag provides an overview of the course and discusses how we use computational models to understand the world in which we live, in particular he discusses the knapsack problem and greedy algoriths. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
OS : The underlying overhead of computation, Antti Kantee An operating system is a piece of code intended to help computer operators load punch cards -- hence "operating". The timesharing system was created to allow interactive shared access to the handful of computers which existed at the time. We will examine what is in the interactive punch card loader in 2017, what actually belongs in there, and why things are the way they are. Speaker Bio Antti Kantee has been a NetBSD committer since the 1900's and has managed to do many sorts of damage. He is probably best (or worst, depending on who you ask) known for his decade-long workhaul on rump kernels. Antti very recently moved to the Princeton area, so in case he appears particularly absent during his talk, he got lost on the way to the...
MIT 6.0002 Introduction to Computational Thinking and Data Science, Fall 2016 View the complete course: http://ocw.mit.edu/6-0002F16 Instructor: John Guttag Prof. Guttag discusses the Monte Carlo simulation, Roulette License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
MIT 7.91J Foundations of Computational and Systems Biology, Spring 2014 View the complete course: http://ocw.mit.edu/7-91JS14 Instructor: Christopher Burge, David Gifford, Ernest Fraenkel In this lecture, Professors Burge, Gifford, and Fraenkel give an historical overview of the field of computational and systems biology, as well as outline the material they plan to cover throughout the semester. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Tutorial materials found here: https://scipy2017.scipy.org/ehome/220975/493423/ Description: Do you know the difference between standard deviation and standard error? Do you know what statistical test to use for any occasion? Do you really know what a p-value is? How about a confidence interval? Most people don’t really understand these concepts, even after taking several statistics classes. The problem is that these classes focus on mathematical methods that bury the concepts under a mountain of details. This tutorial uses Python to implement simple statistical experiments that develop deep understanding. I will present examples using real-world data to answer relevant questions, and attendees will practice with hands-on exercises. The tutorial material is based on my bo...
Google Tech Talk 1/8/13 Presented by Nigel P. Smart ABSTRACT Multi-Party Computation (MPC) allows, in theory, a set of parties to compute any function on their secret input without revealing anything bar the output of the function. For many years this has been a restricted to a theoretical tool in cryptography. However, in the past five years amazing strides have been made in turning theory into practice. In this talk I will present the latest, practical, protocol called SPDZ (Speedz), which achieves much of its performance advantage from the use of Fully Homomorphic Encryption as a sub-procedure. No prior knowledge of MPC will be assumed. Speaker Info University of Bristol, U.K.
MIT 8.04 Quantum Physics I, Spring 2013 View the complete course: http://ocw.mit.edu/8-04S13 Instructor: Allan Adams In this lecture, Prof. Adams discusses the basic principles of quantum computing. No-cloning theorem and Deutsch-Jozsa algorithm are introduced. The last part of the lecture is devoted to the EPR experiment and Bell's inequality. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Joe Fitzsimons, Singapore University of Technology and Design Quantum Games and Protocols http://simons.berkeley.edu/talks/joe-fitzsimons-2014-02-24
Neil Lawrence University of Sheffield What is data science? A new name for something old perhaps. Nevertheless there is something new happening. Data is being acquired in ways that could never have been envisaged 100 years ago. This is presenting new challenges, and ones that no single field is equipped to face. In this talk we will focus on three separate challenges for data science: 1.Paradoxes of the Data Society, 2. Quantifying the Value of Data, 3. Privacy, loss of control, marginalization. Each of these challenges has particular implications for data science and the interface between computation and statistics. By addressing these challenges now we can ensure that the pitfalls of the data driven society are overcome allowing to reap the benefits. Zoubin Ghahramani Automating da...
Lecture series on Numerical Methods and Computation by Prof.S.R.K.Iyengar, Department of Mathematics, IIT Delhi. For more details on NPTEL visit http://nptel.iitm.ac.in
International Conference on Functional Programming 2014. Gothenburg, Sweden.
One of My Favorite Authors and a huge free thinker on symbology and ancient history/mystery: Graham Hancock. With such best-sellers as Heavens Mirror, Fingerprints of the Gods, and The Sign and the Seal....among many more (all are fantastic) many would call him a fanatic, a radical, or even a wild free thinker. I wouldn't necessarily disagree but rather tell those who think this, that perhaps thats exactly what we need. We constantly are bombarded with such a main stream ideology to the point where we cant think outside the box or even consider other ideas/theories that may rattle the history books, that we have all foundto be a safe harbor for decades or even centuries. I strongly urge those who find what I say to be intriguing, to pursue his writings or contact me for similar artists. Th...
Who governs digital trust? Doctorow framed the question this way: "Computers are everywhere. They are now something we put our whole bodies into---airplanes, cars---and something we put into our bodies---pacemakers, cochlear implants. They HAVE to be trustworthy." Sometimes humans are not so trustworthy, and programs may override you: "I can't let you do that, Dave." (Reference to the self-protective insane computer Hal in Kubrick's film "2001." That time the human was more trustworthy than the computer.) Who decides who can override whom? The core issues for Doctorow come down to Human Rights versus Property Rights, Lockdown versus Certainty, and Owners versus mere Users.