Base-dependent integer sequences

Undulating number

An undulating number is a number that has the digit form ABABAB... when in the base 10 number system. It is sometimes restricted to non-trivial undulating numbers which are required to have at least three digits and A ≠ B. The first few such numbers are: 101, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 454, 464, 474, 484, 494, ... (sequence in the OEIS) For the full sequence of undulating numbers, see OEIS: . Some larger undulating numbers are: 1010, 80808, 171717, 989898989. (Wikipedia).

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Zeros in Ratios

Ratios with zeros - a problem for many early math students. This video helps you understand how to derive those values.

From playlist Summer of Math Exposition Youtube Videos

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From playlist Celebrities Teach Math: The Number System

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Dividing Complex Numbers Example

Dividing Complex Numbers Example Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys

From playlist Complex Numbers

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Undefined Slope | Algebra

This algebra video provides a basic introduction into vertical lines and their undefined slopes. The slope of a horizontal line, on the other hand, is zero.

From playlist New Algebra Playlist

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Winding number

In this video, I define the concept of a winding number of a curve around a point, which intuitively measures how many times a curve loops around a point. For example, for a circle (or any simple closed curve), the winding number should be 1, but for the curve in the thumbnail, the winding

From playlist Multivariable Calculus

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UXSS 2016 - Dr. Agostino Marinelli

Dr. Agostino Marinelli from SLAC National Accelerator Laboratory presents "Introduction to the Physics of Free Electron Lasers" on June 13, 2016 at the Ultrafast X-ray Summer Seminar, hosted by Stanford PULSE Institute at SLAC National Accelerator Laboratory.

From playlist Stanford PULSE Institute

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An example that helps in identifying irrational numbers and understanding the basic concepts of irrational numbers.

From playlist Middle School This Year

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I define and discuss Real Numbers their subsets of Rational Numbers, Integers, Whole Numbers, Natural Numbers, and finally Irrational Numbers. I finish with Inequalities and the Number line at 23:53 Find free review test, useful notes and more at http://www.mathplane.com If you'd like to

From playlist Algebra 1

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How flying snakes glide: Swimming through the air

Flying snakes glide through the air, flattening their bodies to provide lift. But as they glide they seem to swim, undulating their bodies from side to side. Now a team in the United States has used motion capture technology to study snake gliding in precise detail. Their models reveal tha

From playlist Zoology

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19. Baroque Extravaganzas: Rock Tombs, Fountains, and Sanctuaries in Jordan, Lebanon, and Libya

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From playlist Roman Architecture with Diana E. E. Kleiner

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Chasing the dragon

Oxford Mathematics Public Lectures: Hooke Lecture: Michael Berry - Chasing the dragon: tidal bores in the UK and elsewhere. In some of the world’s rivers, an incoming high tide can arrive as a smooth jump decorated by undulations, or as a breaking wave. The river reverses direction and fl

From playlist Oxford Mathematics Public Lectures

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Borromini, San Carlo alle Quattro Fontane

Francesco Borromini, San Carlo alle Quattro Fontane ("Carlino"), Rome. Commissioned by Cardinal Francesco Barberini in 1634 for the Holy Order of the Trinity; construction began in 1638 and the church was consecrated in 1646. Speakers: Frank Dabell, Dr. Beth Harris, and Dr. Steven Zucker.

From playlist Baroque to Neoclassical art in Europe | Art History | Khan Academy

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Irrational Numbers - What are they?

Learn what an irrational number is in this free math video tutorial by Mario's Math Tutoring. 0:07 What is an Irrational Number 0:11 What is an Integer 0:35 Example of a Rational Number 7 1:02 Example of How a Repeating Decimal is Rational 1:26 Example 1 is Square Root of 7 Rational? 1:40

From playlist Algebra 1

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Graphing Inequalities - G10

Graph simple inequalities on a number line.

From playlist Algebra: Linear Equations with One Variable

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Why Your Pee Looks Like A Chain

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From playlist Chemistry

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Painting a Landscape with Maths

Today we are painting a landscape using mathematics. Support this channel: https://www.patreon.com/inigoquilez Buy this painting in a metal, canvas or photographic paper print: https://www.redbubble.com/shop/ap/39843511 This is the link to the real-time rendering code (that you can edit y

From playlist Painting with Maths

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Numerical investigation on transition mechanisms in a laminar separation by Samson Annapu Reddy

DISCUSSION MEETING FLUIDS DAY ORGANIZERS: Rama Govindarajan, Samriddhi Sankar Ray and Gaurav Tomar DATE : 20 January 2020 VENUE: Ramanujan Lecture Hall, ICTS Bangalore The fluid mechanics community in Bangalore has expanded enormously with different physics and engineering departments

From playlist Fluids Day 2020

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5 MYSTERIOUS SEA MONSTERS UNCOVERED | The Proof is Out There

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From playlist The Proof Is Out There: Official Series Playlist | History

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Visualizing decimal numbers and their arithmetic 67 | Arithmetic and Geometry Math Foundations

This video gives a precise definition of a decimal number as a special kind of rational number; one for which there is an expression a/b where a and b are integers, with b a power of ten. For such a number we can extend the Hindu-Arabic notation for integers by introducing the decimal form

From playlist Math Foundations

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Laser-Plasma Acceleration Research at Berkeley Lab by Carl B Schroeder

06 March 2017 to 17 March 2017 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Particle accelerators have been instrumental in unraveling some of the deep questions related to matter at the fundamental level, the latest being discovery of the Higgs Boson. The conventional accelerators, how

From playlist Laser Plasma Accelerator

Related pages

Prime number | Composite number | Decimal | Repdigit | Palindromic prime | Palindromic number