Clarify biweight_midcovariance modify_sample_size equations
Clarify biweight_midcovariance modify_sample_size equations

larrybradley/astropy,aleksandr-bakanov/astropy,mhvk/astropy,pllim/astropy,astropy/astropy,StuartLittlefair/astropy,stargaser/astropy,saimn/astropy,StuartLittlefair/astropy,larrybradley/astropy,lpsinger/astropy,larrybradley/astropy,astropy/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,pllim/astropy,saimn/astropy,mhvk/astropy,lpsinger/astropy,dhomeier/astropy,pllim/astropy,stargaser/astropy,astropy/astropy,dhomeier/astropy,StuartLittlefair/astropy,mhvk/astropy,larrybradley/astropy,MSeifert04/astropy,stargaser/astropy,mhvk/astropy,larrybradley/astropy,dhomeier/astropy,StuartLittlefair/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,saimn/astropy,MSeifert04/astropy,dhomeier/astropy,lpsinger/astropy,pllim/astropy,pllim/astropy,MSeifert04/astropy,MSeifert04/astropy,saimn/astropy,lpsinger/astropy,stargaser/astropy,astropy/astropy,saimn/astropy,astropy/astropy,dhomeier/astropy,mhvk/astropy,StuartLittlefair/astropy