\( \cos(x) \) : cosine function
\( \tan(x) \) : tangent function
\( \cot(x) \) : cotangent function
\( \sec(x) \) : secant function
\( \csc(x) \) : cosecant function
\( \arccos(x) \) or \( \text{acos}(x) \) : inverse of cosine function
\( \arctan(x) \) or \( \text{atan}(x) \) : inverse of tangent function
\( \cosh(x) \) : hyperbolic cosine function
\( \tanh(x) \) : hyperbolic tangent function
\( \coth(x) \) : hyperbolic cotangent function
\( \text{sech}(x) \) : hyperbolic secant function
\( \text{csch}(x) \) : hyperbolic cosecant function
\( \log(x) \) : logarithmic function to the base \( e \)
\( e^x \) : exponential function with base \( e \)
\( \sqrt{x} \) : square root function
Examples: \( \sin(\pi x) \) , \( e^x \)
\( - \) : subtraction
\( * \) : multiplication
\( \text{^} \) : exponentiation
\( / \) : division