--- title: Sliderule Simulator Teaches You How To Do Calculations... description: A browser-based slide rule simulator recreates the Hemmi/Post 1460 Versalog slide rule, one of the most capable models sold from 1951 to 1975. Built with... canonical: https://daily.dev/posts/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way-cvsfucksu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way | daily.dev og:description: A browser-based slide rule simulator recreates the Hemmi/Post 1460 Versalog slide rule, one of the most capable models sold from 1951 to 1975. Built with... og:url: https://daily.dev/posts/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way-cvsfucksu og:image: https://api.daily.dev/og/posts/cVsFUCkSu.png og:image:alt: Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 4 upvotes · 0 comments ## Summary A browser-based slide rule simulator recreates the Hemmi/Post 1460 Versalog slide rule, one of the most capable models sold from 1951 to 1975. Built with JavaScript, it runs entirely in the browser and goes beyond simple emulation by offering guided instruction: users can enter an equation and the simulator generates step-by-step instructions while animating the slide rule. It also includes structured lessons and tests to help users learn the device from scratch, covering operations like square roots, trigonometry, exponents, and multi-stage multiplication. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Ask HN: Is there anyone here who still uses slide rules?](https://daily.dev/posts/ask-hn-is-there-anyone-here-who-still-uses-slide-rules--lj65s9xe5) · Hacker News · 0 upvotes · 0 comments - [How Slide Rules Work · Amen Zwa, Esq.](https://daily.dev/posts/how-slide-rules-work-amen-zwa-esq--aykrzydge) · Hacker News · 0 upvotes · 0 comments - [Voltmeter-Based Floating Point Calculator Does It In Style](https://daily.dev/posts/voltmeter-based-floating-point-calculator-does-it-in-style-4yzpo6tfp) · Hackaday · 1 upvotes · 0 comments - [The Zero-Power Flight Computer](https://daily.dev/posts/the-zero-power-flight-computer-rdvudraa7) · Hackaday · 0 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript) [View this post on daily.dev](https://daily.dev/posts/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way-cvsfucksu) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way","url":"https://daily.dev/posts/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way-cvsfucksu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way-cvsfucksu"},"datePublished":"2026-02-18T19:58:28.413Z","dateModified":"2026-02-18T19:58:45.398Z","description":"A browser-based slide rule simulator recreates the Hemmi/Post 1460 Versalog slide rule, one of the most capable models sold from 1951 to 1975. 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