The new system may be simpler but you still need an abacus to work it out.
Numbers are better manipulated as calculus stones or abacus beads than in human memory.
The waterleaf is a broad, unribbed, tapering leaf curving up towards the angle of the abacus and turned in at the top.
At the same time, there has been a revival of interest in the ancient methods of calculation, especially the use of simple and unsophisticated gadgets such as the abacus .
Our eventual aim is to display the complete history of computing, from the abacus to the latest machines.
The uppermost molding, or abacus , of this capital is 2.8 meters wide.
Use a calculator, put pencil to paper, try an abacus .
Using an abacus can stimulate the nerves in the fingers.
The capital displays on three of its faces a single naked male dancer, whose head is positioned on the central axis, midway between volutes, as if to form a console supporting the abacus .
The abacus is between the architrave and the aechinus in the capital.