vintage slide rule and math textbook
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
vintage slide rule and math textbook |
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| navigate by keyword : 20th antique book calculations century circle circumference detail early illustrates linear logarithmic math mathematics multiplication old opened precomputing problem radius rule section slide solving technology text textbook vintage ways |
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| Detail of vintage linear logarithmic slide rule and an antique early 20th century mathematics text book opened at the slide rule multiplication section. Slide rule illustrates circumference of a circle with radius 2. Illustrates old ways and technology and pre-computing problem solving and calculations. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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