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From playlist Indices, powers & roots
What is Special About the Number 4?
This video explains what is special about the number 4 and the spelling of 4.
From playlist Mathematics General Interest
Using a set of points determine if the figure is a parallelogram using the midpoint formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Determine if a set of points is a parallelogram using the distance formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Determining if a set of points is a rhombus, square or rectangle
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
How to determine the perimeter of a quadrilateral using distance formula of four points
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Geometry: Ch 4 - Geometric Figures (1 of 18) Squares and Rectangles
Visit http://ilectureonline.com for more math and science lectures! In this video I will define the square and rectangle, explain the equations of their parameters, areas, and diagonals. Next video in this series can be seen at: https://youtu.be/yDgpmhYrKw4
From playlist GEOMETRY 4 - GEOMETRIC FIGURES
Determining if a set of points makes a parallelogram or not
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Determine if a set of points makes up a rectangle using the distance formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane
Cryptanalysis of Classical Ciphers
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
Math for Liberal Studies - Lecture 3.6.2 The Bifid Cipher
This is the second video lecture for Math for Liberal Studies Section 3.6: An Introduction to Cryptography. In this lecture, we discuss a new method for encrypting and decrypting messages: the bifid cipher. This method relies on converting the letters in the message to coordinates in a let
From playlist Math for Liberal Studies Lectures
ADFGVX Cipher: Encryption and Decryption (Updated)
Encryption and Decryption of the World War One ADFGVX Cipher, through examples. This video replaces an earlier one with the same content, but has some improvements and corrections. #cryptography
From playlist Classical Cryptography
Follow-up: Barbie electronic typewriter
Here is a copy of the description from the Barbie video: ---- I first found this story on the crypto museum website, which has great information about the Barbie typewriter (and other cipher machines) https://www.cryptomuseum.com/crypto/mehano/barbie/ ------- Thanks to Sarah Everett fr
From playlist My Maths Videos
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
"Illustrating Geometry" exhibition: Artist's talk by Saul Schleimer: "Minimal and Seifert Surfaces"
Slides: http://homepages.warwick.ac.uk/~masgar/Talks/minimal_and_seifert_surfaces.pdf This video is also available at the Simons Center website, at http://scgp.stonybrook.edu/archives/11540 Thanks to Josh Klein for filming and editing.
From playlist 3D printing
Mathematics in Cryptography III - Toni Bluher
2018 Program for Women and Mathematics Topic: Mathematics in Cryptography III Speaker: Toni Bluher Affiliation: National Security Agency Date: May 24, 2018 For more videos, please visit http://video.ias.edu
From playlist Mathematics
The Trick That Solves Rubik’s Cubes and Breaks Ciphers (Meet in the Middle)
What do the Rubik's cube and a cipher from the 70s have in common? Let's find out. 0:00 Rubik's cube 9:40 DES ------------------------ Links: Feliks setting the 4.73 record https://www.youtube.com/watch?v=R07JiT0PlcE&ab_channel=FeliksZemdegs webpage "God's number is 20" http://www.cub
From playlist Algorithms
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
ADFGVX Cipher: Encryption and Decryption (OLD VERSION: SEE NEW VERSION LINK BELOW)
This video has been replaced with an updated video: visit https://youtu.be/T0xfKiU9Rr4 Encryption and Decryption of the World War One ADFGVX Cipher, through examples.
From playlist Classical Cryptography
Determine if a set of points is a parallelogram by using the slope formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr
From playlist Quadrilaterals on a Coordinate Plane