setFormula
setFormula(String value) function
Formulas within values, from, to, by attributes can be made up of these: Standard arithmetic operators: �+�, �-�, ��, �/�, �^�, �%� (mod) Constants: �pi� �e� Conditional operators: �abs�, �min�, �max�, �?� (if) Comparison operators: ‘==’, ‘>=’, ‘’, ‘!=’, ‘!’ Trigonometric operators: �sin()�, �cos()�, �tan()�, �asin()�, �acos()�, �atan()� Natural logarithm �ln()� Property references (host supported properties) for example: “#ppt_x+(cos(-2pi*(1-$))-#ppt_x-sin(-2pi*(1-$))(1-#ppt_y))(1-$)” Read/write String.