-
Title: Injectivity, Surjectivity for Square Matrices
-
Series: Linear Algebra
-
Chapter: Matrices and linear systems
-
YouTube-Title: Linear Algebra 30 | Injectivity, Surjectivity for Square Matrices
-
Bright video: https://youtu.be/oMrya7bVQrI
-
Dark video: https://youtu.be/2M7p3asDY7k
-
Ad-free video: Watch Vimeo video
-
Original video for YT-Members (bright): https://youtu.be/r3RVsfgZOZo
-
Original video for YT-Members (dark): https://youtu.be/MxTh_FMkKHE
-
Forum: Ask a question in Mattermost
-
Quiz: Test your knowledge
-
Dark-PDF: Download PDF version of the dark video
-
Print-PDF: Download printable PDF version
-
Thumbnail (bright): Download PNG
-
Thumbnail (dark): Download PNG
-
Subtitle on GitHub: la30_sub_eng.srt missing
-
Download bright video: Link on Vimeo
-
Download dark video: Link on Vimeo
-
Timestamps (n/a)
-
Subtitle in English (n/a)
-
Quiz Content
Q1: Is the map $f_A$ induced by the matrix $A = \begin{pmatrix} 1 & 0 \ 0 & 2 \end{pmatrix}$ bijective?
A1: Yes, it is!
A2: No, only surjective.
A3: No, only injective.
A4: One needs more information.
Q2: Is the map $f_A$ induced by the matrix $A = \begin{pmatrix} 1 & 0 \ 0 & 0 \end{pmatrix}$ bijective?
A1: No, it’s neither surjective nor injective.
A2: No, it’s not surjective but injective.
A3: No, it’s not injective but surjective.
A4: One needs more information.
A5: Yes, it is.
-
Last update: 2024-10
