CODEWITHSUNDEEP
javascriptlatex
Sean
Sean

Reputation: 827

LaTeX curly braces will not be passed. Have used Math quill and still not working

I am using the Desmos API for a math project and am trying to set the latex of an expression to f(x) = { x^2 : x > 1} for piecemeal function. However, I cannot get the { or } within the latex. Function does not work without this character.

I have also used Mathquill for this equation to give me correct latex but even that (f\left(x\right)=\left\{x^2:x>1\right\}) does not work

I have been searching around stackoverflow and google for a while now. I have attempted \{\} , \\left( \\right) only provide ( and ). Nothing will seem to work. 

<div id="calculator" style="width: 100%; height: 500px"></div>

var elt = document.getElementById('calculator');
var calculator = Desmos.GraphingCalculator(elt);

calculator.setExpression({
    id:'1', 
    latex: "f(x)=\{x^2:x>1\}"
});

The curly braces are destroyed and the piecemeal function is not applied

This doesn't return any errors to my console. The only error is on the desmos calculator which says it doesnt understand why ":" is present (It would not do this if there was curly brackets specifying its the piecemeal function). The correct result should be f(x) = {x^2 : x > 1} but the actual result is f(x) = x^2 : x > 1

Upvotes: 3

Views: 704

Answers (1)

BlueWater86
BlueWater86

Reputation: 1817

You need to double escape the curly braces and you also have your condition and value reversed. Here is a working snippet.

var elt = document.getElementById('calculator');
var calculator = Desmos.GraphingCalculator(elt);

calculator.setExpression({
    id:'1', 
    latex: "f(x)=\\left\\{x>1:x^2\\right\\}"
});
<script src="https://www.desmos.com/api/v1.3/calculator.js?apiKey=dcb31709b452b1cf9dc26972add0fda6"></script>
<div id="calculator" style="width: 100%; height: 500px"></div>

Upvotes: 2

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