how i can write this in matlab

1 view (last 30 days)
Serafim Galinschii
Serafim Galinschii on 16 Dec 2020
Commented: Jan on 17 Dec 2020
  1 Comment
Jan on 17 Dec 2020
Do you want some code to evaluatre this expression? Then what is i and j?
Or do you want to write this as a lable or title of a diagram and ask for bold font, italics and the dot?

Sign in to comment.

Answers (2)

Matt Gaidica
Matt Gaidica on 17 Dec 2020
i - 1.3 * diff(y) * j
  1 Comment
Walter Roberson
Walter Roberson on 17 Dec 2020
Probably not. and are usually used to represent unit vectors.

Sign in to comment.

Walter Roberson
Walter Roberson on 17 Dec 2020
That is a bit ambiguous, but most likely the MATLAB for that would be
-1.3j * diff(y)
You might notice that this has no i in it. It is likely that you should not use
i - 1.3j * diff(y) %PROBABLY WRONG
In the image you show, i and j are most likely unit vectors along two axes (that are usually mapped to x and y) . MATLAB does not have distinct unit vectors in multiple dimensions, just real values and imaginary values . MATLAB uses both i and j to represent the same value, sqrt(-1), so (for example) 1*i - 1*j would be 1*sqrt(-1) - 1*sqrt(-1) which would be 0.
  1 Comment
Adam Danz
Adam Danz on 17 Dec 2020
Also, watch out for predefined i and j variables which are common variable names in loops. That can be fixed by including
clear i j
if you're running this in a script.

Sign in to comment.


Find more on Creating and Concatenating Matrices in Help Center and File Exchange





Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!