public FinancialMathResult PerformGeometricLinking(decimal[] values)
{
var returnValue = values[0];
var calculation = values[0].ToString();
for (int i = 1; i < values.Length; ++i)
{
returnValue = (1 + returnValue) * (1 + values[i]) - 1;
calculation = string.Format("((1 + {0}) * (1 + {1}) - 1)", calculation, values[i]);
}
var result = new FinancialMathResult(
returnValue,
calculation + " = " + returnValue);
return(result);
}
public FinancialMathResult AnnualizeByMonth(
decimal value,
int monthCount)
{
const int monthsPerYear = 12;
var valueAsDouble = Convert.ToDouble(value);
var baseVal = 1 + valueAsDouble;
var baseValCalc = string.Format("(1 + {0})", value);
var exponentVal = monthsPerYear * 1.0 / monthCount;
var exponentValCalc = string.Format("({0} * 1 / {1})", monthsPerYear, monthCount);
var pow = Math.Pow(baseVal, exponentVal) - 1;
var calculation = string.Format("({0} ^ {1}) - 1", baseValCalc, exponentValCalc);
var result = new FinancialMathResult();
result.Value = Convert.ToDecimal(pow);
result.Calculation = calculation + " = " + Convert.ToDecimal(pow);
return(result);
}