Cosine of square function

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This article is about a particular function from a subset of the real numbers to the real numbers. Information about the function, including its domain, range, and key data relating to graphing, differentiation, and integration, is presented in the article.
View a complete list of particular functions on this wiki
For functions involving angles (trigonometric functions, inverse trigonometric functions, etc.) we follow the convention that all angles are measured in radians. Thus, for instance, the angle of 90\,^\circ is measured as \pi/2.


This function is defined as the composite of the cosine function and the square function. Explicitly, it is the function:

\! x \mapsto \cos(x^2)


Below is the graph of the function restricted to the domain [-5\sqrt{\pi},5\sqrt{\pi}]: