Function
Name
Description
= Equal To
< Less Than
> Greater Than
OR Or
AND And
NOT(val) Not
TRUE() True
FALSE() False
IF(condition, 'true val', 'false val') Conditional (if/else) Lets you return one of two values based on whether the given condition is true or false. Useful for toggling a field’s dynamic value based on previous answers. eg  IF({{score}} = 50, ‘YOU PASS’, ‘YOU FAIL’)
ISBLANK(val) Is Blank or Empty Returns true/false based on whether the given value is blank/empty. An easy way to check if a field has no answer.
NOTBLANK(val) NOT Blank or Empty Returns true/false based on whether the given value is not blank/empty. An easy way to check if a field has any answer.
COALESCE(val1, val2) First Non-Empty Value (coalesce) Use this function when you want to guarantee a non-blank value is returned. This is useful when doing scoring calculations – wrap each answer in a  COALESCE({{answer}}, 0)  to ensure you get a zero if the user has not provided an answer.
REGEX(input, pattern) Regular Expression Match Returns true/false based on whether the regular expression finds a match in the input string. Regular expressions are a very powerful, advanced feature.  ‘http://msdn.microsoft.com/en-us/library/hs600312(v=vs.110).aspx’   Learn about regular expressions     ‘http://msdn.microsoft.com/en-us/library/sdx2bds0(v=vs.110).aspx’   Learn more about the match function
acos(). asin(). useremail(). utcnow(). format-date(). Logic. sin(). cosh(). userfirstname(). userexternalid(). format-num(). ‘.’ (dot). now(). Choices Functions. date(). logarithm(). counter(). string(). sinh(). boolean().