Language

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"An unitary" or "an union" or "an university" were used in the 18th century, but now "a" rather than "an" is standard when the initial sound is "yoo".

Naming convention

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HTML math

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Minus sign

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Use [−1,1] instead of [-1,1]. The little hyphen is too short to be a minus sign.

Colon

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instead of

 

Mapping arrows

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When you want to define the domain and codomain of the mapping use

 

but when you define the actual mapping function use

 

Standard function names

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Use

 

instead of

 

to prevent the function names from looking like a variable.

Imaginary unit

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The imaginary unit i should not be confused with the common variable i. So to make the imaginary unit look different it is better to write

 

than

 

Embedded fractions

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When a fraction is in a superscript or otherwise deeply embedded within some other notation, it is often more legible like this

 

than like this

 

Spacing

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Integrals

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Use

 

rather than

 

Sets defined by using braces

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This is another place where small spacing adjustments make notation look better. This

 

is better than this

 


Rate of change: The relationship between two numbers that are changing. To find it, you must divide. Formula: change in dependent variable/change in independent variable. Information by Daron Brown.

Probability: tells how likely something will happan. ex. The probability of a die landing on 4. Information by Daron Brown.

Equation: a math sentence that has an equal sign. ex. x + 3 = 10