Casio fx-7000G
CR2032 Lithium | |
Dimensions | 165 mm × 89 mm × 15 mm (6.5 in × 3.5 in × 0.6 in) |
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The Casio FX-7000G is a calculator which is widely known as being the world's first graphing calculator available to the public. It was introduced to the public and later manufactured between 1985 and c. 1988.[2] Notable features are its ability to graph functions,[3] and that it is programmable. The calculator offers 82 scientific functions and is capable of manual computation for basic arithmetic problems.[4]
Features
Mathematical
The calculator can compute basic arithmetic functions with a precision up to 13 digits.[2] Many functions integrated into the calculator include arithmetic and algebraic computations such as:
- square roots
- reciprocals
- exponential functions
- factorials
- logarithms
- trig functions[4]
Other specialized functions also implemented into the calculator include
Programming
Like many
The calculator uses a
The calculator has 26 numeric memories as standard. Additional memories can be created by reducing the number of bytes available for programs. Using this facility allows a total of 78 memories maximum.
Graphing
The calculator has a built in graphing feature which is unique to its model. The calculator can display either built-in graphs that are already programmed or display a user defined graph.[8] The user also has the option to rewrite any of the previously programmed graphs.[8]
Statistical graphs can also be generated: bar graphs, line graphs, normal distribution curves, regression lines.[6]
Display and Exterior
Display
The FX-7000G incorporates an
Exterior
A black casing surrounds the calculator along with a metal panel implemented on the rear; a large plastic screen protects the LCD display window as well. Keys are labeled and printed on orange, green, blue, red, and black malleable buttons.[2]
Measurements
The calculator's dimensions (width, height, depth) are 83.5 mm × 167 mm × 14 mm (3.29 in × 6.57 in × 0.55 in). It has an approximate mass of 155.5 g (5.49 oz) including batteries. [2]
Power
The Casio Fx-7000G needs a 9.0 volt
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The calculator with box and operation manual
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The lower keys have the traditional Casio layout. The EXE key would execute the sum on the keyboard. The Ans key could be used to represent the last answer; simple iterative functions could be built up.
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The upper keyboard has the main function keys. The SHIFT and ALPHA keys are used to access the many different functions each key could be.
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The power-on screen displays system mode, calculation mode, angle unit and rounding. These could be changed by pressing the MODE button, or SHIFT then MODE buttons, as shown on the writing below the screen.
See also
References
- ^ calculator.org
- ^ a b c d e "Vintage Technology". Archived from the original on 2012-09-13.
- ^ a b "Manual: Chapter 4" (PDF). Archived from the original (PDF) on 2003-12-16.
- ^ a b c d e "Manual: Chapter 1" (PDF). Archived from the original (PDF) on 2004-06-15.
- ^ "Manual: Chapter 2" (PDF). Archived from the original (PDF) on 2005-12-16.
- ^ a b fx-7000G Owner's Manual: Specifications.
- ^ a b c "Manual: Chapter 5" (PDF). Archived from the original (PDF) on 2003-12-17.
- ^ a b "Manual: Chapter 3" (PDF). Archived from the original (PDF) on 2003-12-16.
External links
- Casio FX-7000g Page on ledudu's casio library
- Page on Void Ware, a graphing calculator site
- Page on DATAMATH CALCULATOR MUSEUM
- Manual in pdf at the Wayback Machine (archived May 9, 2013)