Writing an exponential equation in the title
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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 Commento
Risposte (3)
  John BG
      
 il 7 Mar 2017
        
      Modificato: John BG
      
 il 7 Mar 2017
  
      Akhil
you mean this
a=8.56;n=0.68; figure;   title(['y = ' num2str(a) ' x^{' num2str(n) '}' ]);

.
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thanks in advance
John BG
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  Rik
      
      
 il 6 Mar 2017
        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 Commenti
  Walter Roberson
      
      
 il 7 Mar 2017
				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
      
      
 il 8 Mar 2017
				'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.
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