/// <summary>
/// For multiplication read left to right, clear everything except the value which will
/// be stored in the last position to allow for more operations if they exist.
/// </summary>
/// <param name="section"></param>
private List<string> PerformMultiplicationAndDivision(List<string> section)
{
var complexSection = section.Where(x => !string.IsNullOrEmpty(x)).ToList();
for (var x = 0; x < complexSection.Count; x++)
x = PerformCoreCalculations(complexSection, x, "/", "*", false);
return complexSection;
}
/// <summary>
/// For addition and subtraction read right to left, clear everthing except the value which
/// will be stored in the last postion to allow for more operation if they exist.
/// </summary>
/// <param name="section"></param>
/// <returns></returns>
private double PerformAdditionAndSubtration(List<string> section)
{
var simpleSection = section.Where(x => !string.IsNullOrEmpty(x)).ToList();
for (var x = simpleSection.Count - 1; x >= 0; x--)
x = PerformCoreCalculations(simpleSection, x, "-","+", true);
return simpleSection.Where(x => !string.IsNullOrEmpty(x)).Sum(s => double.Parse(s));
}
