•{3INT} … {total interest paid from installment PM1 to installment PM2}

•{3PRN} … {total principal paid from installment PM1 to installment PM2}

•{CMPD} … {compound interest screen}

• An error (Ma ERROR) occurs if parameters are not configured correctly.

Use the following function menus to maneuver between calculation result screens.

•{REPT} … {parameter input screen}

•{CMPD} … {compound interest screen}

•{GRPH} … {draws graph}

After drawing a graph, you can press (TRCE) to turn on trace and read calculation results along the graph.

The first press of (TRCE) displays ,17 and PRN when n = 1. Each press of C shows ,17 and PRN when n = 2, n = 3, and so on.

Press )to return to the parameter input screen.

6. Interest Rate Conversion

The procedures in this section describe how to convert between the annual percentage rate and effective interest rate.

SFormula

EFF =

 

1+

APR/100

n

 

 

 

 

–1

σσ100

APR : annual percentage rate (%)

 

 

 

n

 

 

 

 

 

 

 

EFF : effective interest rate (%)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EFF

1

 

 

 

 

 

 

n : number of compoundings

APR =

1+

n

–1

 

σσn σ100

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Press (CNVT) from the Financial 1 screen to display the following input screen for interest rate conversion.

(CNVT)

n........... number of compoundings

I% ......... interest rate

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