F(N) = 10^(N-1) minus the sum of k=1 to 10^(N) of 0.1. Work out (by hand) the exact value of f(N). Work a MATLAB function with a for loop to execute f(N). I can’t figure out how to find the exact value of this and so I can’t figure out how to format it for the for loop. I have tried and can’t find any documentation that clears it up for me. Please help.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.