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COS
Cos is the short version of the trigonometry Cosine() function.
This short version is always used in equations and expressions since it takes less space.
Used in an equation it might look like
cos x = -0.22
This would be interpreted as "The cosine of x is -0.22". Most mathematicians would speak it as
"cosine x equals negative 0.22". (It is sometimes spoken as 'cos' also).
The pages below refer to the trig Cosine() function.
If you not find what you need, you can also search the web for other definitions.
Definition of the cosine function as applied to right triangles in trigonometry
Interactive demonstration of the graph of the cosine function in trigonometry
A brief introduction to trigonometry to allow geometry formulas to be calculated. How to claculate sin, cos, tan functions.
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