| fv(rate, nper, pmt, pv[, when]) | 
Compute the future value. | 
| pv(rate, nper, pmt[, fv, when]) | 
Compute the present value. | 
| npv(rate, values) | 
Returns the NPV (Net Present Value) of a cash flow series. | 
| pmt(rate, nper, pv[, fv, when]) | 
Compute the payment against loan principal plus interest. | 
| ppmt(rate, per, nper, pv[, fv, when]) | 
Compute the payment against loan principal. | 
| ipmt(rate, per, nper, pv[, fv, when]) | 
Compute the interest portion of a payment. | 
| irr(values) | 
Return the Internal Rate of Return (IRR). | 
| mirr(values, finance_rate, reinvest_rate) | 
Modified internal rate of return. | 
| nper(rate, pmt, pv[, fv, when]) | 
Compute the number of periodic payments. | 
| rate(nper, pmt, pv, fv[, when, guess, tol, ...]) | 
Compute the rate of interest per period. |