mean_variance

1 auto a = [ 1.0f, 1, 1 ];
2 assertEq( a.mean_variance, [ 1.0f, 0.0f ] );
3 
4 auto b = [ 1.0f, 2, 3 ];
5 assertEq( b.mean_variance, [ 2.0f, 1.0f ] );

import des.math.linear.vector;

auto a = [ vec3(1,2,3), vec3(2,3,4), vec3(3,4,5) ];
assertEq( a.mean_variance, [ vec3(2,3,4), vec3(1,1,1) ] );