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| In exponential form, the exponent is the small, raised number used to show repeated multiplication -- the number of times you multiply the base |
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| In exponential form, the base is the number on the bottom -- the number being multiplied. |
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| An exponential expression is an expression that involves an exponent. The expression may contain variables, which may be the base or the exponent. |
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For any nonnegative number b, the number is called the principal square root of b. It has the property ()2 = b.
The principal square root of b is also denoted . The symbol representing the principal square root is called a radical sign, and the expression under it, in this case b, is called the radicand.
For example, the principal square root of 4 is 2, and the principal square root of 81 |
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| A radicand is the expression under a radical sign |
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| A number written in scientific notation has the form N times 10 to the m power, where N is between 1 and 10, and m is an integer. When converting very large numbers to scientific notation, the decimal point is moved to the left and the exponent m is positive. When converting very small numbers, the decimal point is moved to the right and the exponent m is negative. Scientific notation provides a good way of writing and working with very large or very small numbers. |
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