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## Fractional Exponents vs Radicals

*Stephen J. Lurie*

### in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Use of radicals may sometimes be avoided by substituting a fractional exponent: (a2−b2)1/2instead of a2−b2. As with unstacking fractions, if clarity is sacrificed by making the equation fit within the ... More

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## Negative Exponents

*Stephen J. Lurie*

### in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

A negative exponent denotes the reciprocal of the expression, as illustrated in these examples: x−n= 1/xn A−1 = 1/A B−2 = 1/B2 A negative exponent may simplify some expressions within running text: A(x+y)2 may also be written as A(x+y)-2 or A/(x+y)2 ... More

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## Logarithmic Expressions

*Stephen J. Lurie*

### in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

The term log is an abbreviation of logarithm. A system of logarithms may be based on any number, although logarithmic systems based on the numbers 10, 2, and the irrational number e are most common. The ... More

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