# Standard normal distribution Calculator

## Calculates the probability density function and lower, upper and inner cumulative distribution functions of the standard normal distribution. | ||

Standard normal distribution

[1-8] /8 | Disp-Num |

- Purpose of use
- Compare to my calculations within database. I needed to know if my 10+ digits were accurate.
- Comment/Request
- Are you using the Taylor series? All other methods I have seen are approximations. Some crazy good, but still approximations. We match up to 30 decimals so I assume we're both correct. Thanks for this wonderful tool.

[1] 2022/08/08 09:25 50 years old level / Self-employed people / Useful /

- Purpose of use
- work
- Comment/Request
- how to make calculation if the single give 1,-1

if we do the calculation

1+1+1+ = 3 but,

what if 1 +(-1)+1 = 1

how we want to make the result 2 not 1

[2] 2020/06/30 02:00 20 years old level / An engineer / Very /

- Purpose of use
- Get upper cumulative for very large deviations (6 sigma to 8 sigma). This calculator has the required large number of digits
- Comment/Request
- Why number of standard deviations (which works perfectly well in this box) is titled "percentile". It is not percentile as I understand it.

[3] 2020/02/01 09:46 60 years old level or over / An engineer / Very /

- Purpose of use
- Testing my fortran subroutine PNORM

[4] 2017/12/13 15:54 60 years old level or over / A retired people / Very /

- Purpose of use
- calculating VERY large number stes

[5] 2017/06/15 14:33 - / High-school/ University/ Grad student / Very /

- Purpose of use
- test

[6] 2017/05/23 05:41 50 years old level / An engineer / Useful /

- Purpose of use
- research
- Comment/Request
- what we use the standard normal distribution

[7] 2012/03/03 13:01 30 years old level / A teacher / A researcher / - /

- Purpose of use
- for fun during a long boring summer
- Comment/Request
- very good site layout, easy to navigate

[8] 2009/06/30 22:33 Under 20 / A junior high student / Very /

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