Summation based benchmark for calculators

[pier4r]

Thanks for the new entries!

Observation. As discussed in this thread the 35s, fx5800p and dm42 are the top3 options for a scientific calculator with ability to store many formulas. Anyway I am impressed by the difference of speed between the 35s and the fx5800p (note, it may be that for normal usage this difference will be never noticed). The dm42 is just amazing but it is also 4 time the price of 35s and fx5800p (and again, we are talking only about speed, not common operations).

Question to emece67. Is your 15C much older than your 41CV ?

Still missing
- 41 CL
- 12C (recent and old)
- 71B
- 67
- Some sharp PC
- other capable (programmable or sum function) calculators