Formulas within values, from, to, by attributes can be made up of these: Standard arithmetic operators: \u2018+\u2019, \u2018-\u2018, \u2018*\u2019, \u2018/\u2019, \u2018^\u2019, \u2018\u2019 (mod) Constants: \u2018pi\u2019 \u2018e\u2019 Conditional operators: \u2018abs\u2019, \u2018min\u2019, \u2018max\u2019, \u2018?\u2019 (if) Comparison operators: '==', '>=', '', '!=', '!' Trigonometric operators: \u2018sin()\u2019, \u2018cos()\u2019, \u2018tan()\u2019, \u2018asin()\u2019, \u2018acos()\u2019, \u2018atan()\u2019 Natural logarithm \u2018ln()\u2019 Property references (host supported properties)...\u2018pi\u2019 \u2018e\u2019 Conditional operators: \u2018abs\u2019...