| 1. | Many electronic calculators allow calculations of trigonometric functions in either degrees or radians.
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| 2. | They didn't use electronic calculators because they hadn't invented them yet.
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| 3. | Solar panels in cheap electronic calculators are taken for granted.
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| 4. | :It's not just a matter of sliderules, mathematicians don't use electronic calculators much either.
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| 5. | In 1972, he helped Sinclair Radionics to launch its first electronic calculator, the Executive.
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| 6. | The evolution culminated in the 1970s with the introduction of inexpensive handheld electronic calculators.
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| 7. | Presently, they have been supplanted by electronic calculators and computers.
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| 8. | Roberts wanted to design a new electronic calculator kit but his partners wanted out.
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| 9. | He coauthored a book on electronics calculators with his friend, Ed Roberts in 1974.
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| 10. | And the basis for electronic calculators at the time.
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