BoxMargins is an option for AdjustmentBox objects that specifies the margins to leave around the contents of the box.
BoxMatrix[r] gives a (2 r + 1)*(2 r + 1) matrix of 1s.BoxMatrix[r, w] gives a (2 r + 1)*(2 r + 1) block of 1s centered in a w*w matrix of 0s.BoxMatrix[{r_1, r_2, ...}, ...] ...
BoxRatios is an option for Graphics3D that gives the ratios of side lengths for the bounding box of the three-dimensional picture.
BoxStyle is an option for three-dimensional graphics functions that specifies how the bounding box should be rendered.
BoxWhiskerChart[{x_1, x_2, ...}] makes a box-and-whisker chart for the values x_i.BoxWhiskerChart[{x_1, x_2, ...}, bwspec] makes a chart with box-and-whisker symbol ...
BracketingBar[x, y, ...] displays as |x, y, ...|.
BrayCurtisDistance[u, v] gives the Bray\[Dash]Curtis distance between vectors u and v.
BreadthFirstScan[g, s, {"event_1" -> f_1, "event_2" -> f_2, ...}] performs a breadth-first scan (bfs) of the graph g starting at the vertex s and evaluates f_i whenever ...
Break
(Built-in Mathematica Symbol) Break[] exits the nearest enclosing Do, For, or While.
BrownForsytheTest[data] tests whether the variance of data is 1. BrownForsytheTest[{data_1, data_2}] tests whether the variances of data_1 and data_2 are ...