Reposts are fine after a year or so (<a href="https://news.ycombinator.com/newsfaq.html">https://news.ycombinator.com/newsfaq.html</a>) but this one had a big thread a few months ago:<p><i>Calculus Made Easy by Silvanus P. Thompson (1910)</i> - <a href="https://news.ycombinator.com/item?id=38057837">https://news.ycombinator.com/item?id=38057837</a> - Oct 2023 (60 comments)<p>Others:<p><i>Calculus Made Easy (1910)</i> - <a href="https://news.ycombinator.com/item?id=27991120">https://news.ycombinator.com/item?id=27991120</a> - July 2021 (97 comments)<p><i>Ask HN: Links to older resources like Calculus Made Easy</i> - <a href="https://news.ycombinator.com/item?id=23272635">https://news.ycombinator.com/item?id=23272635</a> - May 2020 (4 comments)<p><i>Calculus Made Easy (1914) [pdf]</i> - <a href="https://news.ycombinator.com/item?id=23257303">https://news.ycombinator.com/item?id=23257303</a> - May 2020 (67 comments)<p><i>Calculus Made Easy (1910)</i> - <a href="https://news.ycombinator.com/item?id=18250034">https://news.ycombinator.com/item?id=18250034</a> - Oct 2018 (68 comments)<p><i>Ask HN: Books Like 'Calculus Made Easy'?</i> - <a href="https://news.ycombinator.com/item?id=14166466">https://news.ycombinator.com/item?id=14166466</a> - April 2017 (8 comments)<p><i>Calculus Made Easy (1914) [pdf]</i> - <a href="https://news.ycombinator.com/item?id=14161876">https://news.ycombinator.com/item?id=14161876</a> - April 2017 (189 comments)