String scalar or character vector must have valid interpreter syntax
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axis ([0,20,0,20])
text(3.0, 8.0,'\fontsize{30} \omega=2 \pi*f=2 \pi*c/ \lamda')
2 个评论
Nicolás Bozzo
2023-1-23
the letter is called lambda not lamda
Walter Roberson
2023-1-23
In Modern Greek, the name of the letter is Λάμδα
Unicode uses the (Modern Greek-based) spelling "lamda" in character names, instead of "lambda", due to "the pre-existing names in ISO 8859-7, as well as preferences expressed by the Greek National Body".[18]
回答（1 个）
Ameer Hamza
2020-9-28
编辑：Ameer Hamza
2020-9-28
Here are two options to write this
axis ([0,20,0,20])
text(3.0, 8.0,'$\omega=2 \pi*f=2 \pi*c /\lambda$', ...
'Interpreter', 'latex', ...
'FontSize', 30)
and
axis ([0,20,0,20])
text(3.0, 8.0,'\omega=2 \pi*f=2 \pi*c /\lambda', ...
'Interpreter', 'tex', ...
'FontSize', 30)
Read more about intrepreter options here: https://www.mathworks.com/help/matlab/ref/text.html#f68-481090_sep_shared-Interpreter
5 个评论
George Rodriguez
2020-9-28
Ameer Hamza
2020-9-28
I am glad to be of help!!!
George Rodriguez
2020-9-28
Ameer Hamza
2020-9-28
You placed escape character (\) at unnecessary locations
text(2,2, 'y_{z} = e^{2} = 1+ x+ x^{2}/2!+ x^{3}/3+',...
'Interpreter', 'tex', ...
'FontSize', 20)
George Rodriguez
2020-9-28
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2020-9-28
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