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Selforganizology, 2026, 13(1-2): 1-25
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Article

probFunCal: A webpage calculator for probability distribution functions

WenJun Zhang
School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China

Received 11 April 2025;Accepted 22 April 2025;Published online 25 April 2025;Published 1 June 2026
IAEES

Abstract
In present study, a calculator, probFunCal, was developed for calculating probability distributions. In the calculator, probability distributions as normal distribution, t distribution, χ2 distribution, F distribution, etc., were available for use. Probability density function, cumulative distribution function, and inverse cumulative distribution function of these probability distributions can be calculated. The calculator is web browser based that includes both online and offline versions and can be used on various computing devices (PCs, iPads, smartphones, etc.), operating systems (Windows, Mac, Android, Harmony, etc.) and web browsers (Chrome, Firefox, etc).

Keywords calculator;web application;JavaScript;probability distribution;probability density function;cumulative distribution function;inverse cumulative distribution function;normal distribution;t distribution;F distribution;χ2 distribution.


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