| The abacus system of mental calculation is a system where users mentally visualize an abacus to do calculations. No physical abacus is used; only the
answers are written down.
This system is being propagated in Singapore, South Korea, Thailand, Malaysia and Japan. Mental calculation is said to improve mental
capability, increases speed of response, memory power and concentration power.
Some veteran and prolific abacus users naturally tend to not use the abacus anymore but perform calculations by visualizing
the abacus. This was verified when the right brain measured heightened
EEG activity when calculating and compared with non-veterans who were using the abacus to
perform calculations.
The standard abacus can be used to perform addition, subtraction, division and multiplication; the abacus can also be used to
extract square-roots and cubic roots.
External links
|
