@CalcMgrExcelSYD
Purpose:
Returns the sum-of-years' digits depreciation of an asset for a specified period
Syntax:
Java Class: com.hyperion.calcmgr.common.excel.cdf.ExcelFinancialFunctions.SYD(double,double,double,double)
CDF Spec: @CalcMgrExcelSYD(cost, salvage, life, per)