1. Casio Fx 991es Scientific Calculator
2. Casio Fx-9750gii Natural Display

Casio Fx 991es Scientific Calculator

Casio V.P.A.M. Calculators are scientific calculators made by which use Casio's ( V.P.A.M.), Natural Display or Natural V.P.A.M. Input methods. Is an system for entering mathematical expressions, used by Casio in most of its current. In the the of mathematical operators is taken into account.

Casio Fx-9750gii Natural Display

According to Casio, in V.P.A.M. Calculations can be input exactly as they are normally written. Functions, operators and symbols are shown on the calculator display and calculations are performed according to operator precedence. Contents • • • • • • • • • • • History [ ] The V.P.A.M. Name was first introduced in 1994 with the release of the fx-991S scientific calculator in Japan. In 1998, the Casio fx-991W model used a two-tier (multi-line) display and the system was termed as S-V.P.A.M. (Super V.P.A.M.), featuring 5x6-dot LCD matrix cells top line and 7-segment LCD bottom line that had been used in Casio fx-4500P prog calculators.