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Matrices: reading and basic operations

Mathematics — first biennium · Lesson

Biennium · Scientific profile

Matrices: reading and basic operations

Matrix addition combines entries in the same position. This micro-skill is profile-dependent and especially useful in scientific tracks.

Key idea
Formula matematica
Similar example
Formula matematica

Prerequisites: Vectors and component organization

Goal: Read matrices and perform elementary componentwise operations.

What you need to know before the exercises

In this lesson: Read matrices and perform elementary componentwise operations.

New concept: A matrix is a rectangular table of numbers arranged in rows and columns. Its size is written rows×columns; an entry's position depends on both indices.

How to proceed: Do not mix rows and columns when adding: each entry combines with the entry in the same position.

You can already assume: Vectors and component organization.

Try it now

Add two 2×2 matrices componentwise.

Guided

Completed exercises: 0/5 · Correct on first attempt: 0

How to reason

Do not mix rows and columns when adding: each entry combines with the entry in the same position.

Data / situation: A=[[4,2],[0,0]], B=[[-3,0],[3,-1]]

Formula matematica
Your competency map

What you need to know for Matrices: reading and basic operations

ConceptStep separates what is required from what is recommended or useful as reinforcement. Only required prerequisites block your progress.

Current topic Strong skill Review due Needs reinforcement To be mastered Optional support

Relationships: solid line = required · dashed line = recommended · dotted line = reinforcement.

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