Notes by Lex

Articles in the permanent category

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• Cross Product

  Dec 05, 2021 permanent    LinearAlgebra

  

  An operation between two 3d vectors that returns a vector.

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• Matrix Determinate

  Nov 06, 2021 permanent    LinearAlgebra

  

  A measure of how a matrix scales space.

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• Basis Vectors

  Oct 24, 2021 permanent    LinearAlgebra

  

  The set of vectors that defines space.

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• Roblox CFrame

  Oct 19, 2021 permanent    Roblox  LinearAlgebraApplications

  

  In Roblox, a CFrame (coordinate frame) is an object that encodes position and rotation in 3D space.

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• Identity Matrix

  Sep 18, 2021 permanent    LinearAlgebra

  

  When you multiply a matrix $(A)$ by the Identity Matrix $(I)$, you get the original matrix back.

  $A …$

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• Law Of Cosines

  Sep 04, 2021 permanent    Maths  Trigonometry  PreLinearAlgebra

  

  The Law of Cosines expresses the relationship between the length of a triangle's sides and one of its angles.

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• Roblox Vector3

  Aug 29, 2021 permanent    Roblox

  In Roblox, a Vector3 defines a Vector with three components. We use it for setting the position, rotation, and size of elements.

  For example, a …

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• Presizing

  Aug 05, 2021 permanent    MachineLearning  ImageClassification

  

  Pre-sizing is a technique for preparing images for training a neural network.

  In standard image pipelines, images are resized to a size suitable for our …

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• Cross-Entropy

  Jul 29, 2021 permanent    InformationTheory

  

  Cross-entropy measures the average number of bits required to identify an event if you had a coding scheme optimised for one probability distribution $q …$

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• Domain Shift

  Jun 26, 2021 permanent    MachineLearning  MachineLearningFailureModes

  

  When production data diverges significantly from the training dataset

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