use prefix and suffix to render dynamic ticks with mathjax

Author: archmoj

test/image/baselines/mathjax3___ternary-mathjax.png

@@ -31,6 +31,8 @@
         "title": {
           "text": "$B^2$"
         },
+        "tickprefix": "$\\sqrt",
+        "ticksuffix": "^2$",
         "showline": true,
         "showgrid": true
       },
@@ -41,12 +43,8 @@
         "showline": true,
         "showgrid": true,
         "labelalias": {
-          "0": "$0^2$",
-          "20": "$20^2$",
-          "40": "$40^2$",
-          "60": "$60^2$",
-          "80": "$80^2$",
-          "100": "$100^2$"
+          "20": "$(\\sqrt20)^2$",
+          "60": "<i><b>Sixty<b><i>"
         }
       }
     },