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A scientific calculator is an electronic calculator, either desktop or handheld, designed to perform calculations using basic ( addition, subtraction, multiplication, division) and complex ( trigonometric, hyperbolic, etc.) mathematical operations and functions. They have completely replaced slide rules as well as books of mathematical tables ...
The first pocket calculators supporting scientific notation appeared in 1972. The displays of pocket calculators of the 1970s did not display an explicit symbol between significand and exponent; instead, one or more digits were left blank (e.g. 6.022 23 , as seen in the HP-25 ), or a pair of smaller and slightly raised digits were reserved for ...
Sinclair Scientific. The Sinclair Scientific calculator was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other calculators available at the time. The Sinclair Scientific Programmable, released a year later, was advertised as the first budget programmable calculator.
Ten key notation This printing calculator made by Sharp uses ten-key notation. Notice the size and placement of the keys, including the extra-large "+/=" and the red "-/=" keys. The ten-key notation input method first became popular with accountants' paper tape adding machines. It generally makes the assumption that entered numbers are being ...
Dimensions. 158 × 82 × 18.2 mm (6.22 × 3.23 × 0.72 in) The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific ...
Engineering notation or engineering form (also technical notation) is a version of scientific notation in which the exponent of ten is always selected to be divisible by three to match the common metric prefixes, i.e. scientific notation that aligns with powers of a thousand, for example, 531×10 3 instead of 5.31×10 5 (but on calculator displays written without the ×10 to save space).
A basic scientific calculator, using infix notation, barely programmable and with no graphing capabilities. HP-21: 1975 Scaled-down HP-25. HP-21S: 1989 An algebraic, keystroke programming calculator. HP-22S: 1988 An algebraic scientific/statistics calculator. HP-25: 1975 Smaller programmable model with programs up to 49 steps.
Scientific notation was created to handle the wide range of values that occur in scientific study. 1.0 × 10 9, for example, means one billion, or a 1 followed by nine zeros: 1 000 000 000. The reciprocal, 1.0 × 10 −9, means one billionth, or 0.000 000 001.