PC-1211, PC-1250, etc. TVM

[Albert Chan]

(06-06-2024 11:02 PM)dm319 Wrote:  You're paying off your interest, so it's odd that these calculators can return -1000 for FV.

That's because robve other calculators do not have rate exactly 80%

lua> tvm_begin(40, nil, 900, -400, -1000)
0.8000000000098451
lua> tvm_begin(40, _, 900, -400, nil)
-1000.0000635560003

Quote:If you have FV = -100,000 what do you get for I%?

lua> tvm_begin(40, nil, 900, -400, -1e5)
0.8000000097564842
lua> tvm_begin(40, _, 900, -400, nil)
-100000.00038198779