Titlebook: Spirals, Helical Lines, and Spiral-Like Figures; Mathematical Playful Hans Walser Textbook 2024 The Editor(s) (if applicable) and The Autho

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Angular Archimedean Spirals,In square Archimedean spirals, each pass is of equal width.

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Curvature,Curves with increasing or decreasing curvature are examined. In particular, the clothoid is discussed. This plays an important role in transportation.

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Golden Spirals,Spirals, mostly logarithmic spirals, are presented in the context of the golden ratio.

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Optical Illusions,Optical illusions are created with suitably arranged wave lines. In particular, apparent helical lines, logarithmic spirals, or loxodromes are created.

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Hans WalserExciting Resource for Educators, Learners, and Math Enthusiasts.Attractive Color Illustrations and Supplementary Animations (the latter through the SN More Media App or browser).Modular structure so t

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