Get a list of the variables contained within the expression.
Usage: nerdamer(expression).variables()
Parameters
none
This function takes no arguments.
Returns
String[]
EXAMPLES:
var e = nerdamer('x^2+y-a*e');
var variables = e.variables();
console.log(variables);
e = nerdamer('a*b*c^r+1');
variables = e.variables();
console.log(variables);