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Sharp EL-5020 Scientific programmable calculator. General specifications: Type: Scientific programmable calculator: Production years. Sharp EL-504 Sharp EL-5040 Sharp EL-5050 Sharp EL-507 Sharp EL-5100 Sharp EL-5100S Sharp EL-5102 Sharp EL-5103 Sharp EL-5103S Sharp EL-512 Sharp EL-5120 Sharp. Kindly send to me a manual for my EL-5020. Sharp el-5020. Here we have a rather nice 10 digit, mixed segment and dot matrix display, scientific calculator from sharp, 1993. Somewhat more modern than the older, but nice, el-512 styling and before the later, and more tacky plastic dal style. As a scientific model, its pretty good with all the usual stuff you would expect including.
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Sharp Scientific Calculator El 506g
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[. . . ] This product, including accessories, may change due to upgrading without prior notice. SHARP strongly recommends that separate permanent written records be kept of all important data. Data may be lost or altered in virtually any electronic memory product under certain circumstances. Therefore, SHARP assumes no responsibility for data lost or otherwise rendered unusable whether as a result of improper use, repairs, defects, battery replacement, use after the specified battery life has expired, or any other cause. [. . . ] , where positive and negative integral values exist depending on the interval. Following these tips will allow results of calculations with greater accuracy and will also shorten the calculation time. [Random Numbers] A pseudo-random number, with three significant digits from 0 up to 0. [Random Dice] To simulate a die-rolling, a random integer between 1 and 6 can be generated by pressing @`1®. [Random Coin] To simulate a coin flip , 0 (head) or 1 (tail) can be randomly generated by pressing @`2®. [Random Integer] An integer between 0 and 99 can be generated randomly by pressing @`3®. [Independent memory (M)] In addition to all the features of temporary memories, a value can be added to or subtracted from an existing memory value. [Last answer memory (ANS)] The calculation result obtained by pressing = or any other calculation ending instruction is automatically stored in the last answer memory. ) Storing a new equation in each memory will automatically replace the existing equation. note: · Calculation results from the functions indicated below are automatically stored in memories X or Y replacing existing values. X memory (r or x), Y memory ( or y) · Use of R or K will recall the value stored in memory using up to 14 digits. Upon completing the calculation, press @ to perform calculations using the same formula. Performing simulation calculation will cause memory locations to be overwritten with new values. After selecting the statistics mode, select the desired sub-mode by pressing the number key corresponding to your choice. to change statistical sub-mode , reselect statistics mode (press m1) , then select the required sub-mode. 0 (SD) : Single-variable statistics 1 (LINE) : Linear regression calculation 2 (QUAD) : Quadratic regression calculation 3 (EXP) : Exponential regression calculation 4 (LOG) : Logarithmic regression calculation 5 (PWR) : Power regression calculation 6 (INV) : Inverse regression calculation The following statistics can be obtained for each statistical calculation (refer to the table on the next page): Statistics of Q and W and, in addition, estimate of y for a given x (estimate y´) and estimate of x for a given y (estimate x´) In addition, estimate of y for a given x and estimate of x for a given y. (Since the calculator converts each formula into a linear regression formula before actual calculation takes place, it obtains all statistics, except coefficients a and b, from converted data rather than entered data. When performing calculations using a, b and c, only one numeric value can be held. The results obtained by this function may include a margin of error. To carry out addition, subtraction, multiplication, and division using complex numbers, press m3 to select the complex number mode. Results of complex number calculations are expressed in two modes: Q @}: Rectangular coordinate mode (xy appears. On selecting another mode, the imaginary part of any complex number stored in the independent memory (M) will be cleared. [. . . ] When results of calculations are in the list format, the list edit buffer with those results will be displayed. ) To save the result in L1-4, press ª, then press °2 and specify L1-4. Since there is only one list edit buffer, the previous data will be overwritten by the new calculation. In addition to the 4 arithmetic functions, x3, x2, and x1, the following commands are available: Returns a list with size changed as specified. [. . . ]
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A Sharp EL-5120 scientific calculator
The Sharp EL-5120 is a scientific programmable calculator. It has about 1 KB of total RAM available to the user, and has 4 basic operational modes:
- Real mode: it is the basic operational mode for directly performing standard algebraic and statistical calculations, as well as evaluating user-defined functions and numerically integrating them.
- NBase: can switch between Binary, Octal, Decimal and Hexadecimal base. Most functions from Real Mode don't work in this mode, but boolean operators for each numerical base are available. Hexadecimal base calculation are performed in 32 bits (8 digits) and there is support for signed operation, but Binary base is limited to 16 bits, though.
- Solver: an interactive expression solver which can, in theory, numerically solve any equation versus any variable, using Newton's method. It may however fail to solve certain classes of equations depending on the expression format and starting values of the variables, so it is often necessary to rewrite the expression or experiment with initial values.
- Program mode: Here the user can enter and execute short programs written in a language closely resembling a cut-down version of FORTRAN or BASIC. Programs can be made to operate in either Real or NBase mode, but not a mixture of both.
Main functions[edit]
- 3-line alphanumeric LCD display.
- Alphanumeric keyboard with SHIFT and ALPHA keys.
- All the standard trigonometrical functions (SIN, COS, TAN) as well as their inverse and hyperbolic versions.
- All of the standard power raising, logarithmic etc. functions
- Some functions like statistical operations and boolean logic functions are accessed via sub-menus, and thus they are not printed on any visible key.
- 28 global user variables (A through Z plus ANS and θ), stored in CMOS memory.
- Up to 9 local variables for each mode of operation and equation, solver or program file, with user defined names. Unlike the 28 global ones, using these local variables consumes user RAM.
- 1 and 2 variables statistics, has only a simple linear regression analysis.
- File 'saving', 'loading' and 'deleting' from the small user RAM. Each mode can store its own 'files', containing e.g. the last calculation or expression, a solver equation or a program plus any eventual local variables and the last ANS value.
- Expression evaluator (in Real mode).
- Numerical integration using Simpson's rule.
- Numerical equation solver vs a specific variable using Newton's method.
- Programs and solver equations can 'exchange data' between them by appropriate use of the global variables, for solving more complex problems.
- Adjustable contrast.
- Uses one 3V CD2025 lithium battery.
Disadvantages[edit]
Sharp Calculator Manual
- Lack of built-in support for complex numbers (can only be emulated via a program or equations).
- Programs and equation files eat up RAM quickly, especially if they contain local variables.
- Local program variables cannot be removed once added without deleting the program.
- Integration/solver functions can be slow or erratic.
- Only one kind of statistical regression (linear).
- Lack of any built-in application formulae or physical constants, these have to be defined and saved by the user as expression and local variables, with a notable expense of RAM.
- Lack of some built-in functions like a simultaneous linear equations system or second grade equations solver, thus forcing to implement them by programming.
- The programming language used consumes RAM too quickly due to weak construction, lacking a proper FOR-like statement and thus forcing to use long and costly
LABEL,GOTOandGOSUBstatements.
Sample programs[edit]
Please note that the actual notation might be different, as some special EL-5120 characters cannot be directly typed on a PC, e.g. the square root and fraction operator:
External links[edit]
Sharp Scientific Calculator El 512
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