Advanced Calculator

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 Expression
Mode Digit Answer  Accuracy Comma format
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Answer
Function List
Inserted in the cursor position of Expression
Elementary Prob Bessel Sp1 Sp2
Input data storage
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Calculator
[1-10] /518Disp-Num
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[1]  2019/05/19 04:08   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
Purpose of use
confirm a high precision division function
[2]  2019/05/09 22:34   Male / 60 years old level or over / An engineer / Very /
Purpose of use
To confirm the results of an extend precision data type with math functions that I am developing (your website is in the credits). Thank you for providing this extremely useful tool free of charge.
Bug report
The answer for a negative value raised to an even power is wrong. For example, -2^2 should be 4, not -4 (just like -2 * (-2), which is correctly calculated as 4). Also, could you please allow copying (so can paste elsewhere) the results in the "Answer" area?
from Keisan
-2^2 = 0 - (2^2) = -4
(-2)^2 = 4
Please refer to the page below.
How to use (6.)

You can copy the result by pressing "Ctrl+C".
[3]  2019/05/04 00:16   Female / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
(1+sqrt(5))/2 with better precision than google's calc.
Comment/Request
Worked like magic. Thanks.
[4]  2019/04/30 10:56   Female / Under 20 years old / Elementary school/ Junior high-school student / Very /
Purpose of use
Homework that I obviously can't do without a calculator and other calculators wouldn't fit the whole numbers
[5]  2019/04/25 23:45   Male / Under 20 years old / A homemaker / Very /
Purpose of use
Finding optimal gear ratios for car transmissions
[6]  2019/04/18 04:29   Female / Under 20 years old / Elementary school/ Junior high-school student / Very /
Purpose of use
to get awnsers
Comment/Request
please let us put in word problems
[7]  2019/04/17 22:52   Male / Under 20 years old / Elementary school/ Junior high-school student / Very /
Purpose of use
Finding e^e
Comment/Request
I just noticed inf/inf doesn't equal one and inf/inf2 doesn't equal 1/2. I don't know if there is a mathematical reason for this but it seems simple that x/x=1 and x/xy=1/y.
[8]  2019/04/10 23:42   - / - / - / Very /
Purpose of use
To calculate the 23179945 bit integer
[9]  2019/04/10 18:11   Male / 50 years old level / An engineer / Useful /
Purpose of use
to calculate the chance among N hashes calculated with the sha-256 algorithm are actually the same
N being e.g. 2000000
* 1-prod_f(1,2000000,(((2^256)-x)/(2^256))) didn't work
* had to simulate (as kind of worst case) by: 1-(((2^256)-2000000)/(2^256))^2000000
Comment/Request
prod_f cannot be used with high b value (or high b-a value) as it gives an input error
[10]  2019/03/31 05:57   Male / Under 20 years old / High-school/ University/ Grad student / Very /
Purpose of use
I was trying to find examples of a calculation that was able to overcome the typical accuracy limitations of a normal calculator (due to the usage of floating point calculations) in order to find out how it was done so I can write a program to perform similar calculations.
Comment/Request
Could you give a brief explanation of how you made this program able to output such high precision numbers. Do you simply use a computer that is more than 64 bits or did you write a custom algorithm that can compute the answer in chunks. If so I would love to see an example of the code for these algorithms.

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