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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.
An unusual feature of the SR-50 was that its included functions like factorial and hyperbolic trig functions, which were found on very few calculators (including the HP-35 and HP-45) at the time. The user invoked the hyperbolic functions by entering the function argument and then pressing the "hyp" key, followed by the "sin", "cos", or "tan ...
It addition to standard features such as trigonometric functions, exponents, logarithm, and intelligent order of operations found in TI-30 and TI-34 series of calculators, it also include base (decimal, hexadecimal, octal, binary) calculations, complex values, statistics. Conversions include polar-rectangular coordinates (P←→R), angles.
In about 1970 HP co-founder Bill Hewlett challenged France Rode to create a "shirt-pocket sized HP-9100".At the time, slide rules were the only practical portable devices for performing trigonometric and exponential functions, as existing pocket calculators could only perform addition, subtraction, multiplication, and division.
The HP used the CORDIC (coordinate rotation digital computer) algorithm, [34] which allows for calculation of trigonometric functions using only shift and add operations. This method facilitated the development of ever smaller scientific calculators.
Casio fx-77, a solar-powered digital calculator from the 1980s using a single-line LCD. A scientific calculator is an electronic calculator, either desktop or handheld, designed to perform calculations using basic (addition, subtraction, multiplication, division) and advanced (trigonometric, hyperbolic, etc.) mathematical operations and functions.
Where calculators have added functions (such as square root, or trigonometric functions), software algorithms are required to produce high precision results. Sometimes significant design effort is needed to fit all the desired functions in the limited memory space available in the calculator chip , with acceptable calculation time.
A HP-01 calculator watch A CFX-200 scientific calculator watch, it has trigonometric functions and scientific conversion capabilities. The μWatch, an open-source DIY scientific calculator watch Casio CMD-40 calculator watch with built-in remote control The Casio TC500 touch sensor calculator watch from 1983. It uses a capacitive touch screen ...