The bar chart with the horizontal axis contains the markings “B R O” and “B R O P S O” from left to right. The vertical axis of the graph is labeled “Cost Function” and ranges from 0 to 400 with an increment of 50 units. The data values in the bars are as follows: B R O: 337.57 units. B R O P S O: 321.74 units.
The comparison of the cost function for the 9 m span problem. Source: Authors' own work