What is the meaning and symbol of abacus?

Abacus means rolling in financial resources and careful calculation, and abacus also means making a fortune. Another metaphor is planning and planning.

Abacus is an auxiliary tool for manual operation and calculation. It originated in China and has a history of more than 2,600 years. This is an important invention in ancient China. Before Arabic numerals appeared, abacus was a widely used computing tool in the world.

Now, abacus continues to be used in parts of Asia and the Middle East, especially in shops, which can be bought from shops that supply goods from China and Japan. In the west, it is sometimes used to help children understand numbers. Some mathematicians like to experience the feeling of calculating simple arithmetic problems with an abacus.

Abacus shape:

The new shape of the abacus is rectangular, with a wooden frame around it and a straight column inside, commonly known as "file". Generally, from the ninth gear to the fifteenth gear, the beam is placed horizontally on the gear, two beads are placed on the beam, each bead counts as five, and five beads are placed under the beam, each bead counts as one. Calculate the beads after positioning, and you can do algorithms such as addition, subtraction, multiplication and division.

The existing abacus has different shapes and materials. Abacus is generally made of wood (or plastic). The abacus consists of a string of beads arranged in a rectangular wooden frame for several days. There is a beam inside to divide the counting bead into upper and lower parts. Counting beads run through a straight column, commonly known as "gear", which is generally gear 9, 1 1 or 13. There is a beam in the middle of the file, and there are 1 beads on the beam, and this bead is 5; 5 beads under the beam, each bead 1.