Writing an exponential equation in the title

16 次查看（过去 30 天）
Akhil Vasvani
Akhil Vasvani 2017-3-6
移动：Sam Chak 2024-10-2
I would like to write my exponential equation in the title of my figure. Right now I have:
title(['y = ',num2str(a),' x^', (num2str(n))]);
The problem is my equation comes out as: y = 8.56 x^(0).68, which is not what I want.
I want would the title to be y = 8.56 x^(0.68). How do I do this?
  1 个评论
Abdoulaye
Abdoulaye 2024-10-2
移动：Sam Chak 2024-10-2
str=num2str(n);
temp=[1:length(str) 0.5:(length(str)-0.5)];
str=[str repmat('^',1,length(str))];
[~,temp]=sort(temp);
str=str(temp);
if true title(['y = ',num2str(a),' x', str]); end

请先登录，再进行评论。

请先登录，再回答此问题。

回答（3 个）

John BG
John BG 2017-3-7
编辑：John BG 2017-3-7
Akhil
you mean this
a=8.56;n=0.68; figure; title(['y = ' num2str(a) ' x^{' num2str(n) '}' ]);
.
if you find this answer useful would you please be so kind to mark my answer as Accepted Answer?
To any other reader, please if you find this answer of any help solving your question,
please click on the thumbs-up vote link,
thanks in advance
John BG
<mailto:jgb2012@sky.com jgb2012@sky.com>
Walter Roberson
Walter Roberson 2017-3-6
title( sprintf('y = %.2f x^{%.2f}', a, n) );
Rik
Rik 2017-3-6
This syntax is essentially calling TeX, so it follows that syntax. It doesn't, however support accolades for grouping commands, so you'll have to repeat the ^ sign.
I suspect there is faster, more stable and more elegant way to do it, but this should work:
str=num2str(n);
temp=[1:length(str) 0.5:(length(str)-0.5)];
str=[str repmat('^',1,length(str))];
[~,temp]=sort(temp);
str=str(temp);
if true title(['y = ',num2str(a),' x', str]); end
  2 个评论
Walter Roberson
Walter Roberson 2017-3-7
I do not think I have ever seen "accolades" used in that context??
TeX uses {} to group; the approach I posted in my Answer works fine.
Rik
Rik 2017-3-8
'Accolade' is the Dutch word for the curly bracket, so that's why I used that word (thinking the English word would also cover this meaning).
Some time ago I have tried to get subscript and superscript in my xlabel and ylabel, but there the {} didn't seem to work, so I assumed that it would work in the title either.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Parametric Modeling 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by