Build a REST API with Node, Express and MongoDB

By DEV Community - 2021-01-07

Description

APIs are a very common thing nowadays. They are used literally everywhere on the website. APIs serve...

Summary

Orthogonal Matrix What is an Orthogonal Matrix?
In terms of geometry, orthogonal means that two vectors are perpendicular to each other.
Additionally you may select any two rows and find that the same property holds, as the transpose of an orthogonal matrix is itself an orthogonal matrix.
Because the transpose preserves the determinant, it is easy to show that the determinant of an orthogonal matrix must be equal to 1 or -1.

Topics

Database (0.26)
Backend (0.23)
Frontend (0.22)

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