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Reviews (1)
06 Jul, 2017
I find the calculator very difficult to use,miinly because the handbook is totally inadequate.I have used Caio PB-100 for many years and would like to
draw your attention to handbook issued with it,
I still have not found out how to lock the calculator into the "engineering "mode instead have to call it for every operation..The print in handbook is very small and hard to read.