# The Lazy Engineer

• ### A Journey into the 4th Dimension - Perspective [Part 1]

640,129 views 2 years ago
An introduction to a series dedicated to exploring the 4th dimension.

A Journey Into the 4th Dimension: Part 1

Presentation based on Edwin A. Abbot's Flatland: A Romance of Many Dimensions.

Music: contact Jacob Simmons (thepinstripedman@gmail.com)

Unfolding cube demonstration
http://demonstrations.wolfr......

Green Kaleidoscope background
http://www.zfootage.com

• ## Requests - SEND problems, RECEIVE solutions Play all

• ### Geometry - two 50 cent coins (Request) - Duration: 2 minutes, 13 seconds.

• 2,616 views
• 3 years ago
• ### Calculus - ADVANCED integral with hyperbolic trig substitution (Request) - Duration: 6 minutes, 25 seconds.

• 2,545 views
• 3 years ago
• ### Calculus - Area enclosed by x=sin(y) and x=y^2-pi^2 (Request) - Duration: 5 minutes, 18 seconds.

• 2,292 views
• 3 years ago
• ### Calculus - ADVANCED Integration - ln(x+sqrt(x^2-1)) - (REQUEST) - Duration: 9 minutes, 43 seconds.

• 2,405 views
• 3 years ago
• ### Discrete Math - Proof: Sum of twin primes is divisible by 12 (Request) - Duration: 4 minutes, 35 seconds.

• 3,061 views
• 3 years ago
• ### Algebra - Completing the square for Ellipse (Request) - Duration: 2 minutes, 38 seconds.

• 427 views
• 3 years ago
• ### Calculus - Implicit Differentiation example (Request) - Duration: 4 minutes, 25 seconds.

• 7,661 views
• 3 years ago
• ### Complex Analysis - finding square and cubed roots of i (Request) - Duration: 11 minutes.

• 1,302 views
• 3 years ago
• ### Discrete Math - Union and Intersect of two sets EXAMPLE (Request) - Duration: 6 minutes, 56 seconds.

• 1,334 views
• 3 years ago
• ### Calculus - Area bounded by y=9/16x^2, y=25-x^2, and y=sqrt(256x/3) (Request) - Duration: 11 minutes.

• 784 views
• 3 years ago
• ### Calculus - Limit of n^(1/n) without L'hopital's Rule (Request) - Duration: 3 minutes.

• 20,912 views
• 3 years ago
• ### Multivariable Calculus - Lagrange Multiplier EXAMPLE (Request) - Duration: 8 minutes, 48 seconds.

• 856 views
• 3 years ago
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• ## Full Courses

• 8:13

• 4:21

• ### Differential Equations - Playlist

• 1:20

• 11:15

#### Differential Equations - 2 - Slope Fields

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