Year: 2025

General

Entertainment and Toys | From Ancient Times to Today

Throughout history, toys and entertainment have played a vital role in human cognitive, social, and physical development. Toys have not only been tools for amusement but also instruments for education, creativity, and life skills enhancement. Over time, toys have evolved from simple natural objects to today’s advanced digital technologies. This article explores the transformation of […]

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General Statistics

Anomaly detection | Sort and Rank techniques

In most cases, there are complex and specific algorithms for abnormal or anomaly detection that have been implemented through various software in statistical or data analysis. However, in this article from the Arman Computer magazine, we aim to discuss the application of sorting and identifying abnormal observations, which, in addition to being simple, is also […]

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correlation coefficient | Inner product of vectors

The correlation coefficient or more precisely, the Pearson correlation coefficient, is a bivariate statistical descriptive statistics that examines the linear dependency between two vectors of observations. Given the range [1,-1] that the value of the Pearson correlation coefficient can have, it is very close to the value of trigonometric functions, especially the cosine function. Therefore, […]

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Mean Formula and its foundation

In other articles from Arman Computer Magazine, we have examined how to calculate the average and weighted mean. But in this text, we want to discover the average or mean formula and learn how to derive its formula. I try to mention the formula syntax less, but sometimes it is necessary to use the syntax […]

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