Mathematics is the science of numbers as Aristotle defined. Here we have collected all the important mathematics definitions. Browse these definitions or use the Search function for a specific definition.
Math Definitions
There are currently 4 definitions in this directory beginning with the letter P.
Pi
The ratio of a circle's circumference to its diameter
In other words: all the way around a circle divided by all the way across it.
The symbol is π
No matter how large or small the circle, its circumference is always π times its diameter.
π = 3.14159265358979323846... (the digits go on forever without repeating)
A rough approximation is 22/7 (=3.1428571...), but that is not accurate.
In other words: all the way around a circle divided by all the way across it.
The symbol is π
No matter how large or small the circle, its circumference is always π times its diameter.
π = 3.14159265358979323846... (the digits go on forever without repeating)
A rough approximation is 22/7 (=3.1428571...), but that is not accurate.
Profit
Income minus all expenses.
Example: Sam's Bakery received $900 yesterday, but expenses such as wages, food and electricity came to $650. So the Profit was $900 − $650 = $250.
But if the income is LESS THAN the expenses it is called a "Loss".
Example: Two days ago Sam's Bakery received $480, but expenses were $520.
$480 − $520 = −$40, which is a $40 Loss
Example: Sam's Bakery received $900 yesterday, but expenses such as wages, food and electricity came to $650. So the Profit was $900 − $650 = $250.
But if the income is LESS THAN the expenses it is called a "Loss".
Example: Two days ago Sam's Bakery received $480, but expenses were $520.
$480 − $520 = −$40, which is a $40 Loss
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