Casio V.P.A.M. calculators explained

Casio V.P.A.M. calculators are scientific calculators made by Casio which use Casio's Visually Perfect Algebraic Method (V.P.A.M.), Natural Display or Natural V.P.A.M. input methods.

V.P.A.M. is an infix system for entering mathematical expressions, used by Casio in most of its current scientific calculators. In the infix notation the precedence of mathematical operators is taken into account. 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.

History

The V.P.A.M. brand was first used in 1994 when the fx-991S and other scientific calculators from the "S" series were released 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.). The model featured a 5×6-dot LCD matrix cells on the top line of the screen and a 7-segment LCD on the bottom line of the screen that had been used in Casio fx-4500P programmable calculators.[1] The S-V.P.A.M. system was also used in the other W series models and also the MS series of calculators that followed. V.P.A.M. is similar to the Direct Algebraic Logic (D.A.L.) used by Sharp in some of their scientific calculators.

The fx-82ES introduced by Casio in 2004 was the first calculator to incorporate the Natural Textbook Display (or Natural Display) system. It allowed the display of expressions of fractions, exponents, logarithms, powers and square roots etc. as they are written in a standard textbook. Natural Display uses natural representation of mathematical expressions and formulas through a 96×31 dot matrix LCD display. Casio uses the term Natural V.P.A.M. for the fx-ES Plus series of calculators which are the upgraded version of the fx-ES series.

In early 2015, Casio introduced a new line of calculators called ClassWiz (stylized as C L A S S W I Z) for different markets, featuring a high resolution (192×63) dot matrix Natural Textbook Display and incorporating spreadsheet functions in some models. This series of calculators is called the fx-EX series and it succeeds the fx-ES Plus series of calculators.

In late 2022, Casio introduced a second generation of ClassWiz line, called fx-CW. Calculators in this line have an updated user interface, and come with 4-gradation displays.[2]

List of calculators

Note: Italic figures in parentheses indicate the year of introduction, e.g.: (c. 1994)

V.P.A.M. (Visually perfect algebraic method)

Models:

S-V.P.A.M. (Two-line, Multi-replay)

W-series

Changes to S-series calculators include:

Models:

MS-series

Revised variants of W Series of calculators including new functions such as:

Non-programmable models:

Programmable models:

Natural Textbook Display

Revised version of the MS Series including the following changes:

Model-specific features include:

Models:

Natural V.P.A.M.

Original Models:[6]

Second edition models:[7]

The CPU found in those models is based on the nX-U8/100 architecture.[8]

ClassWiz (High-resolution Natural Textbook Display)

First version (X series)

Changes to the ES PLUS series include:

Model-specific features include:

Models:

Second version (CW series)

The series was originally called the Z series, but was later changed to the CW series.[13] [14] Changes to the ClassWiz X series include:

Model-specific features include:

Models:

See also

Notes and References

  1. http://www.hpmuseum.org/forum/thread-3174.html Casio fx-4500P: Nice looking pocket machine made in China
  2. Web site: CASIO WEW Worldwide Education Website . 2023-10-12 . CASIO WEW Worldwide Education Website . En.
  3. http://www.hpmuseum.org/forum/thread-3174.html Casio fx-4500P: Nice looking pocket machine made in China
  4. http://kyoro205.blog.fc2.com/blog-entry-503.html Kyoro's Room Blog CASIO fx-5500LA
  5. http://kyoro205.blog.fc2.com/blog-entry-308.html Kyoro's Room Blog CASIO fx-4800P
  6. Web site: CASIO WEW Worldwide Education Website . 2023-12-09 . CASIO WEW Worldwide Education Website . ja.
  7. Web site: CASIO WEW Worldwide Education Website . 2023-12-09 . CASIO WEW Worldwide Education Website . ja.
  8. Web site: Archived copy . 2018-07-12 . 2019-11-22 . https://web.archive.org/web/20191122050213/https://www.oki.com/jp/Home/JIS/Books/KENKAI/n203/pdf/203_R06.pdf . dead .
  9. Web site: Fx-JP900 | CASIO.
  10. Web site: Casio to Release World's First Standard Scientific Calculator Equipped with a Spreadsheet Function . 2016-04-22 . https://web.archive.org/web/20160408210103/http://www.casio-intl.com/asia-mea/en/news/2014/fx-991EX/ . 2016-04-08 . dead .
  11. Web site: Casio to Release World's First Standard Scientific Calculator Which Displays Arabic Script on the Screen . 2016-04-22 . https://web.archive.org/web/20160701210832/http://www.casio-intl.com/asia-mea/en/news/2015/fx-991/ . 2016-07-01 . dead .
  12. http://tieba.baidu.com/p/3894270548 【ClassWiz联测】卡西欧旗舰型号991CNX/JP900/991DEX/991SPX对比
  13. Web site: Admin . 2022-02-08 . Etabliert im Mathematikunterricht: Die ClassWiz Serie . 2023-12-09 . News4teachers . de-DE.
  14. Web site: Test différentiel fx-800DE Z et fx-800DE CW finalisée - News Casio . 2023-12-09 . TI-Planet . en-gb.
  15. Web site: Global Trends in Education—What Are 21st Century Skills? . 2023-12-09 . CASIO WEW Worldwide Education Website . ja.
  16. Web site: CLASSWIZ-fx-800DE CW-Bedienungsanleitungen-CASIO . 2023-11-09 . support.casio.com.
  17. Web site: CLASSWIZ-fx-87DE CW_fx-991DE CW-Bedienungsanleitungen-CASIO . 2023-11-09 . support.casio.com.
  18. Web site: CLASSWIZ-fx-570MY CW-Manuals-CASIO . 2023-11-09 . support.casio.com.

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