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There is no reset button on it and I don't know how to reset it, I changed the mode and now I can't use the shift or alpha buttons and all the answers come out as decimals. Also, I have no idea how to change fractions to decimals. The calculator didn't come with a manual, and please DO NOT post a user manual. I hate the top contributor people because all they do is post a link and leave. Shop Casio FX-115ES Plus Scientific Calculator and other name brand Tools & Equipment More at The Exchange. You've earned the right to shop tax free and enjoy FREE shipping!
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Author | Loadmaster (David R. Tribble)
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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current | 23:01, 20 March 2010 | 2,078 × 2,792 (1.42 MB) | Loadmaster(talk | contribs) | {{Information |Description={{en|1=Casio fx-115ES {{w|scientific calculator|scientific}} {{w|calculator}}.}} |Source={{own}} |Author=Loadmaster (David R. Tribble) {{User:Loadmaster/credit}} |Date=2010-03-20 |Permission=Released under th |
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Casio fx-115ES—A modern scientific calculator from Casio with a dot matrix 'Natural Textbook' LCD
Left: Texas Instruments TI-30X IIS calculator with a two-tier LCD. The upper dot-matrix area can display input formulae and symbols.
Right: The TI-84 Plus—A typical graphing calculator by Texas Instruments
Right: The TI-84 Plus—A typical graphing calculator by Texas Instruments
Casio fx-77, a solar-powered scientific calculator from the 1980s using a single-line LCD
![Casio Fx 115 Es Calculator Casio Fx 115 Es Calculator](http://biz.officedepot.com/pictures/us/od/sk/lg/369889_sk_lg.jpg)
A scientific calculator is a type of electroniccalculator, usually but not always handheld, designed to calculate problems in science, engineering, and mathematics. They have completely replaced slide rules in traditional applications, and are widely used in both education and professional settings.
In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the financial calculator market.
Functions[edit]
Modern scientific calculators generally have many more features than a standard four or five-function calculator, and the feature set differs between manufacturers and models; however, the defining features of a scientific calculator include:
- floating-point arithmetic
- logarithmic functions, using both base 10 and base e
- trigonometric functions (some including hyperbolic trigonometry)
- exponential functions and roots beyond the square root
- quick access to constants such as pi and e
In addition, high-end scientific calculators generally include:
- cursor controls to edit equations and view previous calculations
- hexadecimal, binary, and octal calculations, including basic Boolean math
- fractions calculations
- statistics and probability calculations
- programmability — see Programmable calculator
- equation solving
- letters that can be used for spelling words or including variables into an equation
While most scientific models have traditionally used a single-line display similar to traditional pocket calculators, many of them have more digits (10 to 12), sometimes with extra digits for the floating-point exponent. A few have multi-line displays, with some models from Hewlett-Packard, Texas Instruments (both US manufacturers), Casio, Sharp, and Canon (all three Japanese makers) using dot matrix displays similar to those found on graphing calculators.
Uses[edit]
Scientific calculators are used widely in situations that require quick access to certain mathematical functions, especially those that were once looked up in mathematical tables, such as trigonometric functions or logarithms. They are also used for calculations of very large or very small numbers, as in some aspects of astronomy, physics, and chemistry.
They are very often required for math classes from the junior high school level through college, and are generally either permitted or required on many standardized tests covering math and science subjects; as a result, many are sold into educational markets to cover this demand, and some high-end models include features making it easier to translate a problem on a textbook page into calculator input, e.g. by providing a method to enter an entire problem in as it is written on the page using simple formatting tools.
History[edit]
HP-35, the world's first scientific pocket calculator, was introduced in 1972 by Hewlett-Packard. It used reverse Polish notation and an LED display.
TI SR-50
The first scientific calculator that included all of the basic ideas above was the programmable Hewlett-Packard HP-9100A,[1] released in 1968, though the Wang LOCI-2 and the Mathatronics Mathatron[2] had some features later identified with scientific calculator designs. The HP-9100 series was built entirely from discrete transistor logic with no integrated circuits, and was one of the first uses of the CORDIC algorithm for trigonometric computation in a personal computing device, as well as the first calculator based on reverse Polish notation (RPN) entry. HP became closely identified with RPN calculators from then on, and even today some of their high-end calculators (particularly the long-lived HP-12C financial calculator and the HP-48 series of graphing calculators) still offer RPN as their default input mode due to having garnered a very large following.
The HP-35, introduced on February 1, 1972, was Hewlett-Packard's first pocket calculator and the world's first handheld scientific calculator.[3] Like some of HP's desktop calculators it used RPN. Introduced at US$395, the HP-35 was available from 1972 to 1975.
Texas Instruments (TI), after the introduction of several units with scientific notation, came out with a handheld scientific calculator on January 15, 1974, in the form of the SR-50.[4] TI continues to be a major player in the calculator market, with their long-running TI-30 series being one of the most widely used scientific calculators in classrooms.
Casio, Canon and Sharp have also been major players, with Casio's fx series (beginning with the Casio fx-1 in 1972[5]) being a very common brand, used particularly in schools. Casio is also a major player in the graphing calculator market, and was the first company to produce one (Casio fx-7000G).
See also[edit]
References[edit]
- ^HP-9100A/B at hpmuseum.org
- ^. 196403.pdf. 'across the editor's desk: COMPUTING AND DATA PROCESSING NEWSLETTER - THE MATHATRON'. Computers and Automation. XIII (3): 43. Mar 1964. Archived from the original on 2018-08-01. Retrieved 2018-10-01.CS1 maint: others (link)
- ^HP-35 Scientific Calculator Awarded IEEE Milestone
- ^SR-50 page at datamath.org
- ^Casio FX-1 Desktop Scientific Calculator
Wikimedia Commons has media related to Scientific calculators. |
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