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→The toolbars
:binary button (binary abacus)
:binary button (binary abacus)
:hexadecimal button (hexadecimal abacus)
:hexadecimal button (hexadecimal abacus)
:fraction button (fraction abacus)
:customization-toolbar button
:customization-toolbar button
:stop button not shown
:stop button not shown
:select the number of beads on the bottom of the frame
:select the number of beads on the bottom of the frame
:select the multiplication factor of top beads (e.g., on the Chinese abacus, each top bead counts as 5× the value of a bottom bead on the same rod)
:select the multiplication factor of top beads (e.g., on the Chinese abacus, each top bead counts as 5× the value of a bottom bead on the same rod)
:select the base to determine the value of bottom beads across rods; this is 10 on most conventional abacuses, but 20 on the Mayan abacus and 2 on the binary abacus.
:select the base to determine the value of bottom beads across rods; this is 10 on most conventional abacuses, but 20 on the Mayan abacus, 16 on the hexadecimal abacus, and 2 on the binary abacus.
== How to use an abacus ==
== How to use an abacus ==