Commonly Used Symbols.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
Use mathematical symbols in running text only if they are presented with a numerical value within parentheses. These symbols can be used in figures, tables, and boxes with no explanatory footnotes. Some commonly used symbols are as follows: The following symbols are usually reserved for specific values:...Displayed vs Run-in.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
Simple formulas may remain within the text of the manuscript if they can be set on the line (ie, run in; see 20.2, Stacked vs Unstacked Fractions or Formulas): The pulmonary vascular resistance index (PVRI) was calculated as follows: PVRI = (MPAP − PCWP)/CI, where MPAP indicates mean pulmonary artery pressure; PCWP, pulmonary capillary wedge pressure; and CI, cardiac index....Expressing Multiplication and Division.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
The product of 2 or more terms, including units of measure, is conventionally indicated by a raised multiplication dot (⋅) (eg, 7 kg ⋅ m2) or by 2 or more characters closed up (eg, y = mx + b). However, in scientific notation the times sign (×) is used (eg, 3 × 10...Fractional Exponents vs Radicals.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
Use of radicals (eg, any expression that contains a radical symbol: √) may sometimes be avoided by substituting a fractional exponent: (a2−b2)1/2 instead of a2...Logarithmic Expressions.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
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 base should be subscripted and follow the word log...Long Formulas.
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
Long formulas may be given in 2 or more lines by breaking them at operation signs outside brackets or parentheses and keeping the indention the same whenever possible (some formulas may be too long to permit indention). If lines begin with an operation sign, they should be lined up with the first character to the right of the operation sign in the line above....Mathematical Composition
Lauren Fischer and Paul Frank
in AMA Manual of Style: A Guide for Authors and Editors (11th ed.)
The Mathematical Composition chapter of the 11th edition of the AMA Manual of Style addresses conventions used to display mathematical formulas and other expressions involving special ...
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