code: function evaluatePolynomial (pointsToEvaluate, functionValuesX, functionValuesY) {
    var results = []
    pointsToEvaluate = help.makeItArrayIfItsNot(pointsToEvaluate)
    // evaluate the interpolating polynomial for each point
    pointsToEvaluate.forEach(function (point) {
      results.push(nevillesIteratedInterpolation(point, functionValuesX, functionValuesY))
    })
    return results
  }
docs: Evaluates interpolating polynomial at the set of numbers
  or at a single number for the function y=f(x)
  
  @param {Number|Array} pointsToEvaluate     number or set of numbers
  for which polynomial is calculated
  @param {Array} functionValuesX             set of distinct x values
  @param {Array} functionValuesY             set of distinct y=f(x) values
  @returns {Array}                           interpolating polynomial