Polygraphic substitution is a cipher in which a uniform substitution is performed on blocks of letters. When the length of the block is specifically known, more precise terms are used: for instance, a cipher in which pairs of letters are substituted is bigraphic. As a concept, polygraphic substitution contrasts with monoalphabetic (or simple) substitutions in which individual letters are uniformly substituted, or polyalphabetic substitutions in which individual letters are substituted in different ways depending on their position in the text. In theory, there is some overlap in these definitions; one could conceivably consider a Vigenère cipher with an eight-letter key to be an octographic substitution. In practice, this is not a useful observation since it is far more fruitful to consider it to be a polyalphabetic substitution cipher. (Wikipedia).
Math 031 Spring 2018 020718 Trigonometric Substitution
Method of trigonometric substitution: use the Pythagorean identities. Examples of trigonometric substitution.
From playlist Course 3: Calculus II (Spring 2018)
Integration 12_5_3 Trigonometric Integration.mov
Another example of trigonometric substitution.
From playlist Integration
Integration 12_5_4 Trigonometric Integration.mov
Another example of trigonometric substitution.
From playlist Integration
Integration 12 Trigonometric Integration Part 5 Example 2.mov
Another example of trigonometric substitution.
From playlist Integration
Ex 2: Solve a System of Equations Using Substitution
This video provides an example of how to solve a system of linear equation using the substitution method. Complete Library: http://www.mathispower4u.com Search by Topic: http://www.mathispower4u.wordpress.com
From playlist Solving Systems of Equations Using Substitution
We can employ the power of trigonometric substitutions by converting integrals into trigonometric integrals.
From playlist Older Calculus II (New Playlist For Spring 2019)
Intro to Trigonometric Substitution --- Ex: Deriving Area of Circle Formula
Trigonometry is great for integration because we can utylize all the various trigonometric identities to manipulate challenging integrals into easier ones. Trigonometric SUBSTITUTION involves making substitutions like x=sin(theta) to introduce trig, and then use the trig identities. In t
From playlist Calculus II (Integration Methods, Series, Parametric/Polar, Vectors) **Full Course**
NOTACON 6: The Strange and Creepy World of Brain Fingerprinting
Speaker: Ne0nRa1n Imagine a world in the future where your thoughts could be used against you to sentence you for a crime, could decide if you will be allowed fly on an airplane, or could decided whether or not your own government considers you a terrorist. Sound like something out of dys
From playlist Notacon 6
Ex4: Solve a System of Equations Using Substitution
This video provides an example of how to solve a system of linear equation using the substitution method. Complete Library: http://www.mathispower4u.com Search by Topic: http://www.mathispower4u.wordpress.com
From playlist Solving Systems of Equations Using Substitution
Calculus Introduction to U-Substitution
In this lesson, I introduce the concept of u-substitution for integrals with a brief review of substitution techniques in Algebra first. This technique is also known as integration by substitution.
From playlist Calculus
DEFCON 18: Build a Lie Detector Beat a Lie Detector 2/3
Speaker: RAIN THE NEURONUMEROUS GROUP J03B34R SYSTEM ANALYST Everyone seems to be acquainted with the idea that the polygraph is fallible and that there a million tricks that can supposedly be used to beat it, but how can you really know for sure? One way would be if you pieced togethe
From playlist DEFCON 18-1
DEFCON 18: Build a Lie Detector Beat a Lie Detector 3/3
Speaker: RAIN THE NEURONUMEROUS GROUP J03B34R SYSTEM ANALYST Everyone seems to be acquainted with the idea that the polygraph is fallible and that there a million tricks that can supposedly be used to beat it, but how can you really know for sure? One way would be if you pieced togethe
From playlist DEFCON 18-1
François Métayer: Homotopy theory of strict omega-categories and its connections with...Part 3
Abstract: In the first part, we describe the canonical model structure on the category of strict ω-categories and how it transfers to related subcategories. We then characterize the cofibrant objects as ω-categories freely generated by polygraphs and introduce the key notion of polygraphic
From playlist Topology
François Métayer: Homotopy theory of strict omega-categories and its connections with...Part 2
Abstract: In the first part, we describe the canonical model structure on the category of strict ω-categories and how it transfers to related subcategories. We then characterize the cofibrant objects as ω-categories freely generated by polygraphs and introduce the key notion of polygraphic
From playlist Topology
Hypothesis Test for a Population Percentage using the P-Value Method and StatCrunch
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Hypothesis Test for a Population Percentage using the P-Value Method and StatCrunch
From playlist 8.2 Testing a Claim about a Proportion
DEFCON 18: Build a Lie Detector Beat a Lie Detector 1/3
Speaker: RAIN THE NEURONUMEROUS GROUP J03B34R SYSTEM ANALYST Everyone seems to be acquainted with the idea that the polygraph is fallible and that there a million tricks that can supposedly be used to beat it, but how can you really know for sure? One way would be if you pieced togethe
From playlist DEFCON 18-1
How Do Polygraph Machines Work?
Also known as 'lie detectors,' polygraphs are used to record an individual's vital signs, such as breathing rate, pulse, and so forth. Check out this episode of BrainStuff to learn more about polygraphs and the art of lie detection. Whether the topic is popcorn or particle physics, you ca
From playlist Stuff About Technology
How Non-Alcoholic Beer Is Made | How Do They Do It | Absolute Science
A pint of beer is a staple drink across the globe, but how is non-alcoholic beer made? We take a look at the process from start to end to learn just how they can keep that crisp taste without any alcohol involved. Then, we take a look at an all-terrain buggy and deep-dive into how it works
From playlist Unexplained Science (feat. Absolute Science)
Good Vibrations: The Science of Sound
We look around us—constantly. But how often do we listen around us? Sound is critically important to our bodies and brains, and to the wider natural world. In the womb, we hear before we see. Join John Schaefer, Jamshed Bharucha, Christopher Shera, the Danish sound artist Jacob Kirkegaard
From playlist Explore the World Science Festival
Ex 1: Solve a System of Equations Using Substitution
This video provides an example of how to solve a system of linear equation using the substitution method. Complete Library: http://www.mathispower4u.com Search by Topic: http://www.mathispower4u.wordpress.com
From playlist Solving Systems of Equations Using Substitution