User Manual

7-7
• 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}
• { GRPH } … {draws graph}
After drawing a graph, you can press !1(TRCE) to turn on trace and read calculation
results along the graph.
Press J to return to the parameter input screen.
5. Amortization
This calculator can be used to calculate the principal and interest portion of a monthly
installment, the remaining principal, and amount of principal and interest repaid up to any
point.
u Formula
a : interest portion of installment PM1 ( INT )
b : principal portion of installment PM1 ( PRN )
c : balance of principal after installment PM2 ( BAL )
d : total principal from installment PM1 to payment of installment PM2 ( Σ PRN )
e : total interest from installment PM1 to payment of installment PM2 ( Σ INT )
*
a + b = one repayment ( PMT )
c
a
1 payment
Number of Payments
1 PM1 PM2 Last............ ................... ..........
b
c
a
1 payment
Number of Payments
1 PM1 PM2 Last............ ................... ..........
b
1 payment
Number of Payments
1 PM1
PM2
Last............. ................
.............
e
d
1 payment
Number of Payments
1 PM1
PM2
Last............. ................
.............
e
d