PI function
Description
The function PI() takes no argument and returns the value 3.1415926535898.
Related functions
External links
Recommended book
Trigonometry: A Complete Introduction
Hugh Neill
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This book covers all areas of trigonometry including the theory and equations of tangent, sine and cosine, using trigonometry in three dimensions and for angles for any magnitude, related to triangles. Everything you will need is here in this one book. Each chapter includes not only an explanation of the knowledge and skills you need, but also worked examples and test questions.