GitLab

Renamed numerical integration header to dlib/numerical_integration.h.  Changed relevant headers to include numerical_integration.h  Fixed documentation in integrate_function_adapt_simpson_abstract.h

Simpson rule.  Added unit tests and supporting examples for this
function.

Simpson rule.  Added unit tests and supporting examples for this
function.

a numerical integration method to /examples/adapt_simp.cpp

running_stats object in statistics.h by including two functions that
compute the unbiased empirical skewness and kurtosis of a set
of real numbers.  Added unit tests for these functions in statistics.cpp.

on C++11 compilers.