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SUM and large numbers


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#1 tollkin71

tollkin71

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  • Calculators:
    fx-cp400
    fx-9860GII
    fx-87DEX

Posted 11 September 2024 - 03:01 PM

I have bought a FX-CP400 class pad. Great device!

I am owning different calculators, and one perfromance test I am doing it to do a sum from to 1 to 10.000 or 100.000 and more (if possible)

 

sum(1/n,n,1,10000)

 

is working and after some time I get a result back. But if I increase the target number to 100.000 it does not come back with a result, instead I get the expression back.

 

sum(1/n,n,1,100000)

 

I have not found any documentation which describes this behavoir and what are the limitations for the FX-CP400. Pleae give a hint?

 

Is there a way to go around this barrier? I have tried "approax", but no difference.

 

My "old" FX-9860Gii is doing this sum. It takes 3:25 min. The fx-87DEX takes 8:25 min.

 

Thx and regards


Edited by tollkin71, 12 September 2024 - 05:59 AM.



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