calculate Result
Parses an arithmetic expression from the given string, then return its result.
Any unknown alphanumeric token that is not a number or an element is considered as a variable.
Return
the result of the expression
Parameters
expr
the arithmetic expression to parse
See also
Parses an arithmetic expression from the receiving string, then return its result.
Any unknown alphanumeric token that is not a number or an element is considered as a variable.
Return
the result of the expression