ComplexAnalysis-package
                        Numerically Evaluate Integrals and Derivatives
                        (also Higher Order) of Vector- And
                        Complex-Valued Functions
body2string             Converts the body of a function to a string
derv                    Derivative using the Cauchy integral formula.
disc.integrate          Contour integral along a disc / an arc.
limit                   Limit of a function
line.integrate          Evaluate an integral along a straight on the
                        complex plane
matrix.derv             Matrix derivative
object.extract          Extract mathematical functions or variables
object.substitute       Replace mathematical functions or variables
poles                   Searching for the simple poles of a function
residue                 Residue
