id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7402	Typo in math example	n.g.davies@…	Paul A. Bristow	"In the function {{{two_samples_t_test_equal_sd}}} in libs/math/example/students_t_two_samples.cpp:

{{{
   //
   // Now we can calculate and output some stats:
   //
   // Degrees of freedom:
   double v = Sn1 + Sn2 - 2;
   cout << setw(55) << left << ""Degrees of Freedom"" << ""=  "" << v << ""\n"";
   // Pooled variance:
   double sp = sqrt(((Sn1-1) * Sd1 * Sd1 + (Sn2-1) * Sd2 * Sd2) / v);
/********* THIS LINE BELOW **********/
   cout << setw(55) << left << ""Pooled Standard Deviation"" << ""=  "" << v << ""\n"";
   // t-statistic:
   double t_stat = (Sm1 - Sm2) / (sp * sqrt(1.0 / Sn1 + 1.0 / Sn2));
   cout << setw(55) << left << ""T Statistic"" << ""=  "" << t_stat << ""\n"";
}}}

I believe the line marked should have {{{sp}}} in place of {{{v}}}."	Bugs	closed	To Be Determined	math	Boost 1.52.0	Problem	fixed	math students t two sample