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fx-570EX Clone

classwiz fx-570ex 570

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#1 IzzIrfan86

IzzIrfan86

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Posted 01 June 2020 - 10:19 AM

Hi!

I bought an fx-570EX clone a little while ago, can you guys see the difference? ;)

Would love to see your opinions too! :bow:

Is there any of test you would like me to do? Please do reply. Thank you

87843502_2975546835845048_13616800994259


Edited by IzzIrfan86, 01 June 2020 - 11:32 AM.


#2 IzzIrfan86

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Posted 01 June 2020 - 10:28 AM

The things I noticed:

1. It is 2 to 3 times slower than the original, maybe I'll bring in an ES PLUS to test against it

2. The QR Code generated by the calculator for any calculations is fake, unscannable and is the same

3. The authenticity test doesn't generate any QR Code

4. The screen refreshes at a slower rate than the original

5. The answers calculated are sometimes differ by several digits


Edited by IzzIrfan86, 01 June 2020 - 10:29 AM.


#3 CalcLoverHK

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    fx-9750GIII (2020/6/13)

Posted 01 June 2020 - 10:44 AM

@IzzIrfan86:
Though I can't help you (I don't have this calc), but wow you are a 4-year-old user in this forum. I just looked up your old topic about fx-570s and it ages 4 years O_o.

#4 siealex

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    570w, 570ms, 83es, 570es, 83gt plus, 991es plus, 991de plus, 570spx ii, 9750gii

Posted 06 June 2020 - 01:26 PM

Try the following test on both calculators (in DEG mode):

 

Arcsin(Arccos(Arctan(tan(cos(sin(9))))))-9 

 

and post the result. 



#5 IzzIrfan86

IzzIrfan86

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    FX-570EX
    FX-570ES PLUS
    FX-570ES
    FX-570MS
    FX-570S
    FX-570W

Posted 06 June 2020 - 04:48 PM

Try the following test on both calculators (in DEG mode):

 

Arcsin(Arccos(Arctan(tan(cos(sin(9))))))-9 

 

and post the result. 

Clone: 8.999999998 (internally 8.999999998078897) (16 digits(?))

Original: 9.000000007 (internally 9.00000000733338)







Also tagged with one or more of these keywords: classwiz, fx-570ex, 570

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