Algorist

In the handling of numbers the dream of the algorist was to free men from a machine.

Source: wiktionary

Navigators, astronomers, scientists, mathematicians, and others who were involved in a great deal of calculating were rather readily converted to the algorist inclination.

Source: wiktionary

The sixteenth-century print at the left shows an abacist competing against an algorist.

Source: wiktionary

On the other hand, at the beginning of the fifteenth century, the competition between the abacist who used an abacus for computation and the algorist who invoked Arabic numerical calculations became quite furious. Eventually, the algorist won acceptance.

Source: wiktionary