# HP 48gII User Manual Page 233

Graphing calculator.

The SOLVR sub-menu in the TVM sub-menu will launch the solver for solving
TVM problems. For example, pressing @) S OLVR, at this point, will trigger the
following screen:
As an exercise, try using the values n = 10, I%YR = 5.6, PV = 10000, and FV
= 0, and enter „[ PMT ] to find PMT = -1021.08.... Pressing L,
produces the following screen:
Press J to exit the SOLVR environment. Find your way back to the TVM
Function TVMROOT
This function requires as argument the name of one of the variables in the
TVM problem. The function returns the solution for that variable, given that
the other variables exist and have values stored previously. For example,
having solved a TVM problem above, we can solve for, say, 'N', as follows:
[ ' ] ~n` @TVMRO. The result is 10.
Function AMORT
This function takes a value representing a period of payment (between 0 and
n) and returns the principal, interest, and balance for the values currently
stored in the TVM variables. For example, with the data used earlier, if we
activate function AMORT for a value of 10, we get:
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