50 by 111 by 19 millimetres (1.97 in × 4.37 in × 0.75 in) (Scientific) 73 by 155 by 34 millimetres (2.9 in × 6.1 in × 1.3 in) (Scientific Programmable)
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.
Significant modifications to the algorithms used meant that a chipset intended for a four-function calculator was able to process scientific functions, but at the cost of reduced speed and accuracy. Compared to contemporary scientific calculators, some functions were slow to execute, and others had limited accuracy or gave the wrong answer, but the cost of the Sinclair was a fraction of the cost of competing calculators.
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The SinclairScientific calculator was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other...
Sinclair Radionics Ltd was a company founded by Sir Clive Sinclair in Cambridge, England which developed hi-fi products, radios, calculators and scientific...
Cambridge Scientific, Cambridge Memory, two versions of Cambridge Memory %, Cambridge Scientific Programmable and Cambridge Universal. The Sinclair calculators...
The Sinclair President is a calculator released by Sinclair Radionics in early 1978. There were two models, the President and the President Scientific. They...
active models supporting RPN. In Britain, Clive Sinclair'sSinclairScientific (1974) and Scientific Programmable (1975) models used reverse Polish notation...
Sinclair Oxford was a range of low-cost scientific calculators manufactured and sold by Sinclair Radionics in England from 1975 until 1976. In November...
($6.85) less in kit form, and later models included some scientific functions. The Sinclair calculators were successful because they were far cheaper...
3205/zma000916. PMC 4027809. PMID 24872859. Sinclair, Marius (1993). "On the Differences between the Engineering and Scientific Methods". The International Journal...
The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics...
Sinclair Enterprise was a calculator introduced in 1977 by Sinclair Radionics. The Enterprise calculator was introduced in October 1977 by Sinclair Radionics...
Spectrum (UK: /zɛd ɛks/) is an 8-bit home computer developed and marketed by Sinclair Research. Considered one of the most influential computers ever made, it...
author Upton Sinclair, known for his efforts to expose corruption in government and business in the early 20th century. In 1904 Sinclair spent seven weeks...
The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United...
American author Upton Sinclair in his book Mental Radio which documents Sinclair's test of psychic abilities of Mary Craig Sinclair, his second wife. She...
The Sinclair Wrist Calculator was a wrist-worn calculator produced by Sinclair Instrument and introduced in 1977. The Wrist Calculator was launched in...
Isabella McHutcheson Sinclair (1842 – 29 December 1900) was a Scottish born botanist, author and botanical illustrator. Her best known work is the 1885...
The Sinclair Sovereign was a high-end calculator introduced by Clive Sinclair's company Sinclair Radionics in 1976. It was an attempt to escape from the...
G Emergency: Quantum Leap, a 2019 EP by X1 Sinclair Quantum Leap or QL, a personal computer from Sinclair Quantum Leap Technology, a (defunct) U.S. fuel...
Hugh Macdonald Sinclair, FRCP (4 February 1910 – 22 June 1990) was a medical doctor and researcher into human nutrition. He is most widely known for claiming...
Dr Colin Sinclair Mayne is an agricultural scientist from Northern Ireland. Since February 2009, he has been the departmental scientific advisor for Northern...
according to Sinclair, all of them published his reply in full, including the New York Call. Sinclair claimed this was what he considered a scientific demonstration...
P. Snow, which was published in book form as The Two Cultures and the Scientific Revolution the same year. Its thesis was that science and the humanities...
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