Question

Which function is used to read character as you type?

Answer 1

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The most basic way of reading input is by calling the function getchar. getchar reads one character from the ``standard input,'' which is usually the user's keyboard, but which can sometimes be redirected by the operating system. getchar returns (rather obviously) the character it reads, or, if there are no more characters available, the special value EOF (``end of file'').

Answer 2

Answer:

Standard form is a way of writing down very large or very small numbers easily. 103 = 1000, so 4 × 103 = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form.

Small numbers can also be written in standard form. However, instead of the index being positive (in the above example, the index was 3), it will be negative. The rules when writing a number in standard form is that first you write down a number between 1 and 10, then you write × 10(to the power of a number).

Explanation:

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