I'd like to create a single symbol which is contains a delta "∆" and a t.
For visualisation purposes i use Matlab Live Script.
Combining several latin letters is easy done by:
sym('dt')
But these either result in an exception or don't do a conversion:
sym('Delta t')
sym('Deltat')
The workaround to multiply two symbols does not work in all cases:
sym('Delta')*sym('t')
(sym('Delta')*sym('t'))^2
However, if i square the symbol, i'd like to have this behavior:
sym('dt')^2
But it should contain the delta symbol:
Is this what you want?
title('\Deltat')
If you want, you can also do
title('\Deltat^{2}')
The answer is no, you cant use non-ASCII for variables in MATLAB. This means no \Delta, no \epsilon, or any other non-standard chars.
You can generate the LaTeX representation of the results, and then print them either in text in MATLAB or in your favourite LaTeX editor with the function latex
Related
I would write my xlabel with Latec character so I used this code
x = -10:0.1:10;
y = [sin(x); cos(x)];
plot(x,y)
xlabel('$\mathbb{x}$','Interpreter','latex')
but I have this warning message
Warning: Error updating Text.
String scalar or character vector must have valid interpreter syntax:
$\mathbb{x}$
and the xlabel appear like this
https://i.stack.imgur.com/NCI4n.png
please how I can fix this problem.
The problem with your example is the mathbb command, which is not in base Latex. To show this, replace the \mathbb with, e.g., \mathrm. This will work.
I've never seen an example of adding Latex packages into the Matlab environment. (Update below)
You can have a look at this question, which includes a very aggressive potential way to add the package you need. But it's not clear to me if the solution proposed is actually functional.
How do you use the LaTeX blackboard font in MATLAB?
I want the xlabel of my Matlab figure to read v / Uinf, where the v has an overbar, and the inf is a symbol in subscript.
The line:
xlabel('$\bar{v}$','interpreter','latex')
creates the v overbar, and:
xlabel('U_\infty')
creates the U subscript infinity, but when I try to put them together, Matlab says 'String must have valid interpreter syntax'. It seems setting the interpreter to latex means the U_\infty command doesn't work any more.
Is there a way of writing U_infty that is compatible with latex or another way of writing the two together?
Thanks in advance,
Holly
In LaTeX, U_\infty works only in math mode, so you have to write $U_\infty$ instead.
I would like to use the Letter μ (LaTeX: \mu) in my surface plot. Unfortunately when I use the LaTeX symbol \mu in the zlabel('Power [\muW]'); command it results in:
'Power [ μ W]' instead of 'Power [μW]'
How can I avoid these spaces around μ?
I can't reproduce your problem, which could be due to you using an older version of Matlab. In the past it was neccesary to set the latex interpreter fist, before using Latex syntax. So the following should work:
zlabel('Power [$$\mu$$W]','interpreter','latex');
Nowadays it seems to recognize automatically at least greek letters.
I'm just starting to learn MatLab.
This is what I'd like to convert into MatLab code:
http://postimg.org/image/jqdvcrbod/
Since a lot of my variables are functions or other variables, does that mean that when I write them as functions in MatLab I have to save each of the functions as a separate file? Is there any other way? I don't want to end up with a million separate files, but as of right now, if I write more then one function in the editor, it starts getting confused and doesn't recognize the second function.
Also, is there a way to use actual symbols (like the square root symbol instead of writing "sqrt()") like in Mathematica? I feel like long equations (like the last one) are easier on the eye that way, but that's purely aesthetics.
Is there a way to have MatLab output unassigned variables? Like in Mathematica, if I have y(x) = 2x, if i don't put anything for x, it just outputs 2x.
One quick way to do is use a package in Mathematica called ToMatlab (I attached the download link). It is able to convert Mathematica symbol syntax to Matlab .m file.
Hope this would help.
Is it possible using Greek alphabet to represent variables in MATLAB?
For example, I'd like to use the Greek character epsilon as a variable in MATLAB. I tried to insert \epsilon but I received an error.
It is not possible.
I refer to the following part of Matlab documentation:
Valid Names
A valid variable name starts with a letter, followed by letters,
digits, or underscores. MATLAB is case sensitive, so A and a are not
the same variable. The maximum length of a variable name is the value
that the namelengthmax command returns.
Letter is defined as ANSI character between a-z and A-Z.
For example, the following hebrew letter Aleph returns false (in Matlab R2018a returns true):
isletter('א')
By the way, you can always check whether your variable name is fine by using genvarname.
genvarname('א')
ans =
x0x1A
While Andrey's answer is true for variable names it's a different story for figures.
title('\epsilon\omega') will actually work and generate an epsilon and an omega as title (although the matlab font replaces them with different symbols). If you export the figure as an eps or pdf file you will see that the title really is epsilon omega. Actually any LaTeX control sequence will work!
Same is true for all the figure text objects such as legends and axis labels.