Question
What is a scalar?
Answer
A single number used to measure magnitude or scale another object.
Official deck
Linear Algebra for Computing
By @memoo
Vectors, matrices, linear systems, spaces, projections, eigenvalues, and transformations with applications to graphics, data, and machine learning.
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Question
What is a vector?
Answer
An ordered collection of components that can represent a direction, displacement, feature list, or other structured quantity.
Question
When are two vectors equal?
Answer
When they have the same dimension and every corresponding component is equal.
Question
How are two vectors of the same dimension added?
Answer
Add their corresponding components.
Question
What does scalar multiplication do to a vector?
Answer
Multiplies every component by the scalar.