Chapter II : Use of numbers, symbols, equations and process measurement

Math Equations

Mathematical equations can present difficult and costly problems of type composition.

Because equations often must be retyped and reformatted during composition, errors can be introduced. Keep in mind that typesetters will reproduce what they see rather than what the equation should look like. Therefore, preparation of the manuscript copy and all directions and

identification of letters and symbols must be clear, so that those lacking in mathematical expertise can follow the copy.

Fundamental

An equation can use any combination of mathematical operations, including addition, subtraction, division, or multiplication.

Linear Equation

equation of line (slope and intercept form), is a straight line on the coordinate plane can be described by the equation

Where :a is the slope of the line and b is the intercept

Nonlinear equation

equation whose graph does not form a straight line (linear)

e.g :

Roots

As practical, use negative exponents or the solidus instead of display fractions and fractional powers instead of the radical sign .

For example:

Exponential Functions:

For lengthy or complex exponents,the symbol exp is preferred, particularly if such exponential appear in the body of the text. Thus, is preferable to .The larger size of symbols permitted by this usage also makes reading easier.

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