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Pi - Math is Fun
Draw a circle with a diameter (all the way across the circle) of 1 ... Then the circumference (all the way around the circle) is 3.14159265... a number known as Pi
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Set Symbols - Math is Fun
A set is a collection of things, usually numbers. We can list each element (or member) of a set inside curly brackets like this
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Symbols in Algebra - Math is Fun
Symbols save time and space when writing. Here are the most common algebraic symbols (also see Symbols in Geometry):
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Math is Fun
Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.
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Sequences - Math is Fun
You can read a gentle introduction to Sequences in Common Number Patterns. A Sequence is a list of things (usually numbers) that are in order.
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Factorial Function - Math is Fun
The factorial function (symbol: !) says to multiply all whole numbers from our chosen number down to 1. Examples:
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How to Find the Median Value - Math is Fun
The Median is the middle of a sorted list of numbers. To find the Median, place the numbers in value order and find the middle.
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Exponents - Math is Fun
The exponent of a number says how many times to use the number in a multiplication. In 82 the 2 says to use 8 twice in a multiplication, so 82 =...
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Mathematical Symbols - Math is Fun
Symbols save time and space when writing. Here are the most common mathematical symbols
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Introduction to Logarithms - Math is Fun
In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number?