Title: Test of accuracy of as.character() for a numeric input using the
Description: The function check.as.character() creates pairs of close
numbers, which should have a different character representation
and checks, whether they are converted to different values by

numbers, which should have a different character
representation, and checks, whether they are converted to

Title: Test of accuracy of formatting numbers.
Description: Functions scientific.mpfr() and get.format.from.sci()
allow to compute format information for numbers with high
accuracy using Rmpfr package. Function check.format() compares
this to the output of R base function format.info(). On
platforms with a proper "long double" type, the error should

Description: Accurate Numerical Derivatives. See ?numDeriv.Intro for more details.
Maintainer: Paul Gilbert and Ravi Varadhan <pgilbert@bank-banque-canada.ca>
Packaged: Tue Apr 11 15:16:41 2006; gilp

Packaged: Thu Feb  5 14:09:18 2009; gilp

Description: Accurate Numerical Derivatives. See ?numDeriv.Intro for
Maintainer: Paul Gilbert and Ravi Varadhan

Description: This package provide methods for calculating (usually)
accurate numerical first and second order derivatives. Accurate
calculations are done using Richardson's extrapolation, but a
simple difference method is also provided. Simple difference is
(usually) less accurate but is much quicker and provides a
useful cross-check. Methods are provided for real scalar and
Maintainer: Paul Gilbert and Ravi Varadhan <pgilbert.ttv9z@ncf.ca>

calculations are done using Richardson's extrapolation or, when
applicable, a complex step derivative is available. A simple
difference method is also provided. Simple difference is
(usually) less accurate but is much quicker than Richardson's
extrapolation and provides a useful cross-check.  Methods are
provided for real scalar and vector valued functions.
Copyright: 2006-2011, Bank of Canada. 2012, Paul Gilbert

Description: Methods for calculating (usually) accurate
numerical first and second order derivatives. Accurate calculations
are done using Richardson's extrapolation or, when applicable, a complex
step derivative is available. A simple difference
method is also provided. Simple difference is (usually) less accurate
but is much quicker than Richardson's extrapolation and provides a
Methods are provided for real scalar and vector valued functions.
Copyright: 2006-2011, Bank of Canada. 2012-2015, Paul Gilbert