# latex syntax

Discussion in 'Site Feedback' started by DaveC426913, Feb 1, 2018.

1. ### DaveC426913Valued Senior Member

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Where will I find it defined here?

I can get the formatting, just not the syntax to activate it.

[ TEX ]t_2-t_1[/TEX] or $\Delta t$

3. ### QuarkHeadRemedial Math StudentValued Senior Member

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You put in illegal spaces inside the tex tags

5. ### DaveC426913Valued Senior Member

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Well that was deliberate.

To show the text.

7. ### James RJust this guy, you know?Staff Member

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It isn't really defined here. I take it you mean you want to know how to write equations in TeX?

There are lots of intros on the web.

If you have a more specific question, ask away.

8. ### DaveC426913Valued Senior Member

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No. The syntax for equations is elsewhere.

What I was asking about was how you invoke them: i.e. [ TEX ][ /TEX ]

There's a long delay that occurs before it actually renders, where it looks like it isn't doing anything. I never know whether I've gotten it right until I finally see it rendering correctly.

Anyway, I figured it out, as is witnessed above. i.e.: [ TEX ][ /TEX ] (but without the spaces)

9. ### originIn a democracy you deserve the leaders you elect.Valued Senior Member

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Reload the page and the latex will show up properly.

10. ### Write4UValued Senior Member

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It learned how to do it faster?

11. ### DaveC426913Valued Senior Member

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Haha. No. Once it has rendered it the first time, it doesn't need to do it again; it stores it with a unique ID.
Kind of like web pages are cached so they load faster thereafter.

12. ### Write4UValued Senior Member

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Kinda like storing information in memory?
Don't we cache information in our memories?
Don't we have a saying that "once you have learned to ride a bike, you never forget how."?

13. ### DaveC426913Valued Senior Member

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Not at all.

There is no learning here (which involves being able to apply that knowledge more broadly); there is only a simple record of a unique event. That unique recording does not in any way help toward any other task it's asked.

Example: You have been told that 1+1=2. For a few days or weeks after this (until that recording is purged), when asked what does 1+1 equal?, you can say '2'! But if asked anything else, such as what does 1+2 equal?, you will have no idea.

14. ### Write4UValued Senior Member

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I know what you mean and in that respect I agree.

However, nature itself seems to know what the answer is without needing to study mathematics.
0 + 1 = 1, 1 + 1 = 2, 1 + 2 = 3, 2 + 3 = 5, 3 + 5 = 8, sound familiar? You can find it throughout nature. How does it do that?

Last edited: May 7, 2018
15. ### DaveC426913Valued Senior Member

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Nature didn't invent Latex. What does this have to do with the thread topic?

16. ### Write4UValued Senior Member

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You're right and I am sorry, not trying to hijack the thread. The thought just came to mind. Common denominators and such......

17. ### DaveC426913Valued Senior Member

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10,922
You might be interested in this:
http://digg.com/video/why-gold-ratio-irrational

The second half is the mathematical demonstration, but the first half shows how/why may of nature's mechanisms can be represented to us by the Fibonacci Sequence.
It is simply the flower achieving an optimized seed arrangement. Plants that have a high seed-to-area ratio propagate better than plants that spend too much of their resources arranging too few seeds.

18. ### Write4UValued Senior Member

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I agree and tried to propose (albeit inadequately) that the same phenomenon of "movement in the direction of greatest satisfaction" occurs throughout the universe in the many forms as in the demonstration.

I always qualified my posits re the Fibonacci sequence(s) as a naturally occurring mathematical function. A flower does not "need" to know the mathematics, it just evolved to achieve an "optimized seed arrangement", which happens to lie in the FS.

If I recall, DNA also follows this efficient structure. Nothing mystical about it. It's one of the ways how the universe sorts itself into recurring patterns for greatest efficiency.

IMO, the beauty lies in our ability to discover these naturally forming efficiency patterns (functions) and represent them with our symbolic scientific descriptions as mathematical forms of growth functions, as well as being visually satisfying in the arts.

19. ### Write4UValued Senior Member

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And hopefully of interest to you.
https://www.fq.math.ca/Papers1/55-5/Boman.pdf

I just hope I haven't offended anyone with my fascination with these naturally occurring mathematical functions.

Last edited: May 9, 2018
20. ### Write4UValued Senior Member

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One last post.