Rank of a matrix | Linear Algebra #16

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📚About
Rank of a matrix is one of the most fundamental concepts in understanding linear algebra. This lecture does a tremendous effort in clearing the concept.

⏲Outline⏲
00:00 Introduction
00:18 What is a Rank ?
01:47 Lemma of two spans
03:42 Row-Space Theorem
06:21 Example 1: 2x2 case
08:02 Example 2: Another 2x2 case
11:28 Example 3: 3x3 case
15:01 Example 4: 4x4 case
19:04 Nullity
19:41 Rank-Nullity Theorem
21:38 SVD: Singular Valued Decomposition
22:38 Summary

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#Rank #LinearAlgebra #Matrix
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Simple and straight to the point thanks ahmad !

oyundelisiasd
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The rank of a matrix is the dimension of the linear space spanned by its columns/rows. In particular, we can define the column and row rank.

gurselgenc
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haha loved it that no comments are here. You re still as good dear Ahmad. And thanks for the great work.

samirelzein
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Btw, the rank is full if determinant is not zero.

ahmetozkan