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jusic Newbie
Joined: 18 Sep 2004 Posts: 2

Posted: Sat Sep 18, 2004 4:08 am Post subject: How to write the derivative of a function 


How do you write this correctly in the formula editor?
In LaTeX that would be something like:
Code:  \begin{equation}
f^{\prime}(x)
\end{equation} 
But in OOo \prime or %prime doesn't work, and IMO f '(x) doesn't look right. I searched the forum for "derivative" but I found nothing appropriate. 

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RGB Super User
Joined: 25 Nov 2003 Posts: 1743 Location: In Lombardy, near a glass of red Tuscany wine

Posted: Mon Sep 20, 2004 3:59 am Post subject: 


Horizontal spacing in math is not pretty. Try this "hack":
looks slightly better than f'(x)... 

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jusic Newbie
Joined: 18 Sep 2004 Posts: 2

Posted: Mon Sep 20, 2004 6:48 am Post subject: Horizontal spacing ok, now problem is vertical spacing 


Thanks for the tip. But if you write e.g.:
Code:  {1} over {f^{size*2{,}}(x)} 
Horizontal spacing is quite ok, but 2x sized comma messes up the vertical spacing
Any suggestions to this? 

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RGB Super User
Joined: 25 Nov 2003 Posts: 1743 Location: In Lombardy, near a glass of red Tuscany wine

Posted: Mon Sep 20, 2004 7:07 am Post subject: Re: Horizontal spacing ok, now problem is vertical spacing 


jusic wrote:  Horizontal spacing is quite ok, but 2x sized comma messes up the vertical spacing 
Oops! You are right...
less beautifull, but still better than f'(x):
That is: a " followed by a ' and followed by a ", without spaces This made de ' became "non italiced", with a better spacing as result. 

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manu Newbie
Joined: 22 Nov 2004 Posts: 1

Posted: Mon Nov 22, 2004 7:35 am Post subject: Prime trouble 


Hi there
Am using Math since a few months and could get round most problems with formulas after playing or googling around. There is only that prime for which I haven't found a sufficient solution.
The hacks described above are ok as long as you do not deal with indexes.
In case the primed function has an index either prime or index are too far away from the symbol. Work around is to superscript a double sized , but this doesn't work if the derivative is in the index itself.
To my opinion, the prime should be a Math comand as is e.g. tilde hat bar ...
Is there any way to suggest this to the developers? Guess the modification needed is rather small.
Regards
Manuel 

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David Super User
Joined: 24 Oct 2003 Posts: 5668 Location: Canada

Posted: Mon Nov 29, 2004 6:23 am Post subject: Re: How to write the derivative of a function 


jusic wrote:  How do you write this correctly in the formula editor?
In LaTeX that would be something like:
Code:  \begin{equation}
f^{\prime}(x)
\end{equation} 
But in OOo \prime or %prime doesn't work, and IMO f '(x) doesn't look right. I searched the forum for "derivative" but I found nothing appropriate. 
OK, I 'm admittedly not familiar with the math editor since it reminds me of the thrashing around I did prior to using more advanced algebraic GUI systems. However, I do know that it is sometimes advantageous to combine both ordinary text and the resulting Math graphic insert. That is, can you not type f'(x) = Then go to the math editor to complete the statement, which will then be inserted as a graphic that can be moved to line up if not already there? I know I've done something similar in other word processors.
David. 

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