As in other languages, numbers in PHP are represented in the binary system (the system of ones and zeros), so some mathematical operations may produce slightly different results than we would expect. This page gives an overview of the behaviour of…

Mathematics in PHP

Imagine that you are faced with the task of processing a simple mathematical example that a user enters as a text string, for example, into a search box. Typically, the user wants to perform a simple numerical operation with numbers. This article…

Calculator in PHP: processing a mathematical expression as a string

<p>Because programming and mathematics are very closely related, I focused a lot on mathematics during my studies. In addition to a number of valuable articles, I have written an entire <a href="https://github.com/mathematicator-core">mathematical framework</a> for solving various types of problems. This whole section of the site describes various interesting thoughts, ideas, design patterns, and ways to work with math in PHP.</p>


Mathematics

Algorithms are instructions for solving specific problems. At a basic level, we can think of an algorithm as a cookbook, because it describes the steps of how to produce a finished dish from the input ingredients quite precisely.

In programming,…