LaTeX Syntax Changes

Are you a math teacher that uses the LaTeX syntax to create equations for your boards? (If you don't yet, it's pretty cool and you should check it out!)

The Problem

Unfortunately, the syntax is messing with some users' boards that just happen to use two (or more) dollar signs in the same question or answer.

For example: If a question reads like this, John had $10 in his pocket, but lost $4 on the playground, the part of the sentence between the dollar signs would attempt to be converted into a LaTeX equation. Bad news.

The Changes

To remedy the problem, we decided to change the syntax that initiates the LaTeX equation generator. Instead of placing your equation code between single/double dollar signs ("$" or "$$"), we've created a more deliberate way to trigger these equations using these new wrappers:

  • [ltx] for big blocks
  • [ltxi] for inline equations.

How We Use LaTeX Now

So, here is the code for the quadratic equation:

[ltx]x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}[ltx]

And how it will look on your board questions and answers:

[ltx]x = \frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}[ltx]

And inline equations can be written like this:

Solve for [ltxi]x[ltxi] if [ltxi]x+8=15[ltxi]

To display like this:

Solve for [ltxi]x[ltxi] if [ltxi]x+8=15[ltxi]

It Gets Even Better...

As a result of this change, the board search will become more useful as well when trying to locate other boards with LaTeX equations on them. The search feature requires at least 3 characters to search for boards, which the old pattern of two dollar signs did not fulfill. With the new pattern, you will be able to search for [ltx] or [ltxi] to find other boards with LaTeX equations!

Posted in Pro, Site Updates on August 15, 2017
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