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Scientific notation is a way of representing numbers, usually very large or very small, in the form

a*10^b where 1 <= |a| < 10 is a decimal number and b is an integer (negative or positive).

a is called the mantissa and b is called the exponent.


To convert a number to scientific notation:

• If the number has no decimal point, then add one at the end.

• Then move the decimal point to just after the first digit while counting the number of places you have moved it.

• The mantissa of the new number, formed after moving the decimal point is a.

• If the original number is negative, then so is a.

• The number of places to the left that the decimal point was moved is b. If it was moved to the right, then b is negative.


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8y ago

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