@CalcMgrExcelRATE
Purpose:
Returns the interest rate per period of an annuity
Syntax:
Java Class: com.hyperion.calcmgr.common.excel.cdf.ExcelFinancialFunctions.RATE(double,double,double,double,double,double)
CDF Spec: @CalcMgrExcelRATE(nper, pmt, pv, fv, type, guess)