score:2

Accepted answer

your format '\\(+x \\)' is already being replaced in highcharts, however, you have not enabled html for the labels. simply add this code:

xaxis: {
    labels: {
        usehtml: true
    }
    categories: [
        '\\(+x \\)',
        // ...
    ]
}

or see this updated jsfiddle example.

the same usehtml feature exists for legend, series.datalabels, title, subtitle, tooltip and a few other places where you can use text. if in doubt, search the api.


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