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This single-volume compilation of three books centers on "Hyperbolic Functions, " an introduction to the relationship between the hyperbolic sine, cosine, and tangent, and the geometric properties of the hyperbola. The development of the hyperbolic functions, in addition to those of the trigonometric (circular) functions, appears in parallel columns for comparison. A concluding chapter introduces natural logarithms and presents analytic expressions for the hyperbolic functions.
The second book, "Configuration Theorems, " requires only the most elementary background in plane and solid...