Rounding was not mentioned in the problem statement..
Would be helpful if you change the description to say that the result should be saved to y, rounded up to 3 decimal places. Also, that the present value should be calculated with discrete compounding, and not continuously compounded.
random picture with random colours
Create One Large Eye of size N x N Quickly?
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Get Next Combination
List all of the integer points in a bounded feasble region
Lunar Arithmetic (Addition)
Homemade: Control Charts
Simple return on investment
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