soroban concepts on each bar
Bead Features
The two most important features for a bar are discussed below.
role of a bead
Active Vs InActive Beads
The beads touching the beam are considered active beads, since their value is added to the soroban running total. Each bead represented in grey color shows that it is inactive (not touching the beam) and therefore, not contributing to the device running total.
running total computation
Bar Minimum and Maximum Value
As shown in the figure, each bead has its associated value. There are 5 beads in each bar. Since, no bead touching the bar represents zero, this is the minimum value a bar can have. Similarly, at most, a bar can have all of its beads touching the beam. Making the maximum beam value of 9 i.e. (5+1+1+1+1 = 9)
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