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Sharp calls this WriteView [27] on its scientific calculators and simply Equation Editor on its graphing calculators. [28] HP calls this its Textbook display setting, [ 29 ] which can be used in both RPN and Algebraic mode and in both the Stack and in the Equation Writer application. [ 30 ]
All the models above support Direct Algebraic Logic (D.A.L.), which is an infix input system used by Sharp similar to Casio's V.P.A.M. EL-501W does not support D.A.L., and only has the 7-segment digit line in EL-509W. It only supports 8-digit mantissa display in scientific notation mode. Functions are further stripped down from EL-500W.
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.
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The four ICs of the QT-8D and QT-8B were also used as the basis of the Sharp EL-8, one of the first mass-produced hand-held electronic calculators, introduced in 1971. [ 1 ] Sharp also built OEM versions of the QT-8D for the Swedish office machine company Facit and its subsidiary Addo , which sold them as the Facit 1115 and the Addo-X 9354 .
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The Sharp PC-14xx series (like the Sharp PC-1403 (1986), PC-1403H or PC-1475) uses an 8-bit extended ASCII character set. With minor exceptions the lower half resembles the 7-bit ASCII character set. [1] [2] The upper half contains a full set of half-width Katakana glyphs as well as a number of graphical and mathematical symbols.
One application was in the Sharp EL-8, an early electronic calculator.The eight-segment display produces more rounded digits than a seven-segment display, yielding a more "script-like" output, with the trade-off that fewer possible alphabetic characters can be displayed because the bars F and G are merged (see table below).