Showing a mathematical series in JLabel

Question

How can I show a mathemetical series in a JLabel?

Right now I do it like this by using a String with HTML tags.

String s = "<html>&Sigma;<sup>N</sup><sub>i = 0</sub> x <sub>i</sub></html>";

Result: enter image description here

Is there a nicer way to do this? Because the output is very ugly. Usually N should be above the sigma and i = 0 below.

It would be great if you can add an image of your actual input! — nachokk, Feb 21 '14 at 14:54
+1 then to the question xD, i believe that with some style may work but im not good at all in that — nachokk, Feb 21 '14 at 14:57
Some potentially useful libraries are cited [here](http://stackoverflow.com/q/456002/230513). — trashgod, Feb 21 '14 at 17:42

score 2 · Accepted Answer · answered Feb 21 '14 at 18:42

2

A nicer way to do this is using a third party library to render Latex code in Java.

There are several of them for example JLatexMath, here's a example tutorial.

For instance, using the program of that example your summatory could look like this:

example 1

Or like this:

example 2

answered Feb 21 '14 at 18:42

DSquare

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One more reason to start working with TeX.. Much better results as with simple HTML. – Steve Benett Feb 22 '14 at 12:54

score 1 · Answer 2 · answered Feb 21 '14 at 16:27

1

Unfortunately I found only the following solution.

String s = "<html><table border='0'><tr>"
            + "<td style='font-size: larger'>&Sigma;</td>"
            + "<td style='font-size: smaller'>N<br>i = 0</td>"
            + "<td> x <sub>i</sub></td>"
            + "</tr></table>"

answered Feb 21 '14 at 16:27

Joop Eggen

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This gives a nicer output. Is there a possibility to show N above the sigma and i = 0 below? Or is this not possible at all? – Steve Benett Feb 21 '14 at 16:43
With the second `td align=center` the "lines" `N` and `i=0` will be centered (Java 8). – Joop Eggen Feb 21 '14 at 16:57
Maybe 2 `
`s and `td valign=middle` look better. – Joop Eggen Feb 21 '14 at 17:03

Showing a mathematical series in JLabel

2 Answers2