Calculations in Input Fields
All numeric input fields support certain mathematical functions, which can be entered directly in the field as an expression including parentheses, e.g 
. The result is calculated when you leave the field (Tab key) or press Enter 
The functions:
“+”, “-”, “*”, “/”, “^”,”(“, “)”, “=”, “TAN”, “COS”,”SIN”, “ATAN”, “ACOS”, “ASIN”, “SQRT”, “PI”.
Examples of input:
100 + 100
100+SQRT(25)
2*(3+2)
ATAN(1)
SIN(60)
COS(60)
3.*((2+5*2/COS(60)))
(3.*((2-5*2/COS(60))))
10+2*(5+1/COS(60))