Lesson 2.1 Introduction to Matrices and Operators

A video segment from the Coursera MOOC on introductory computer programming with MATLAB by Vanderbilt. Lead instructor: Mike Fitzpatrick.

[jadsondantas]

Professor Mike Fitzpatrick is amazing. I love his class and his mood.

[mariemhelal]

I just love it, seeing how passioned u are really motivates me . Thank u and May GOD bless n keep u always in this life and the other .

[mm-twsw]

Awesome course. Really appreciated, professor. Hope to watch more videos from you.

[maureenvalle]

i like this course and your passionate delivery sir. God bless you

[draganaorevic]

Thank you so much profesor! So clear lectures, so much knowledge easy for acepting.

[bilauabdulwaheedademola]

Great work. Thanks. We need video tutorials on Matlab OOP. We will be happy to have it come from you two great guys!

[mrsecify]

Convergent series are the best kind of series

[luckycasado]

Thank you very much, very well explained!

[kamalsamadzadeh]

thank you.It is very easy explanation .

[kevinliu]

Why is a scalar not a matrix in Julia? Or why is a scalar a matrix in Matlab? I was told linear algebra is simpler when scalars are matrices, but that makes generalization of higher dimensional arrays much slower.

[chseRB]

How can we make a 3-D matrix? ThreeD = [[[1 1.1]; [2 2.1]; [3 3.1]]; [[4 4.1]; [5 5.1]; [6 6.1]]]

Output:

ans =

1.0000 1.1000
2.0000 2.1000
3.0000 3.1000
4.0000 4.1000
5.0000 5.1000
6.0000 6.1000

[kushatwork]

If a scalar is 1x1 matrix let's take k(1x1) for example and let's take an array/matrix X(3x3) dimensions, the operation k*X should never be possible, but in Matrix k*X results in kX.
Please clarify how is this operation possible in Matlab. Thanks in Advance