Cool Math
Coolmath: Combinations
This algebra lesson explains combinations - how to count how many ways n objects can be chosen r at a time.
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Coolmath: Advanced Graphing Graphs to Know and Love
A tutorial about advanced graphing particular types of graphs.
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Coolmath: Advanced Graphing Absolute Value Functions
This algebra lesson explains how to graph absolute value functions.
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Coolmath: Advanced Graphing Shifting, Reflection, Etc.
Check out this advanced graphing tutorial on shifting and reflecting.
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Coolmath: Advanced Graphing Piecewise Functions
This algebra lesson explains how to graph piecewise defined functions.
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Coolmath: Advanced Graphing Sideways Parabolas
This algebra lesson explains how to graph sideways parabolas.
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Coolmath: Adding and Subtracting Matrices
Check out this algebra lesson that explains how to add and subtract matrices.
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Coolmath: Decimals How to Convert Fractions to Decimals Part 2
A prealgebra lesson that explains how to convert a fraction to a decimal.
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Coolmath: Addition of Signed Numbers With the Same Sign
This prealgebra lesson explains how to add signed numbers (integers) when the signs are the same.
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Coolmath: Adding & Subtracting Polynomials
This prealgebra lesson explains how to add and subtract polynomials.
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Coolmath: Compound Inequalities
This algebra lesson explains how to solve compound inequalities.
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Coolmath: Complex Numbers Factoring the Sum of Two Squares
Use this algebra lesson to learn how to factor the sum of two squares.
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Coolmath: Complex Numbers in the Quadratic Formula
Use this algebra lesson to find out how to use the quadratic formula when you get complex solutions.
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Coolmath: Completing the Square 2 Exercises
This Algebra Cruncher generates an endless number of practice problems for completing the square with solutions.
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Coolmath: 3 X 3 Determinants Practice Exercises
This Algebra Cruncher generates an endless number of practice problems for 3x3 determinants with solutions!
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Coolmath: Cramer's Rule for 3x3's
Use this tutorial to learn how Cramer's Rule works for 3 x 3.
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Coolmath: Compound Interest
This algebra lesson explains how compound interest works and where the formula comes from.
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Coolmath: Compound Interest 1 Practice
This Algebra Cruncher generates an endless number of practice problems for money and compound interest with solutions! Find the final amount when a given amount of money is invested.
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Coolmath: Continuous Compounding
Check out this example of a continuous compounding formula.
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Coolmath: Continuous Compound Interest 1 Practice
This Algebra Cruncher generates an endless number of practice problems for money and continuous compound interest with solutions. Find the final amount when a given amount of money is invested.
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Coolmath: Annuities
Use this algebra lesson to find out how annuities work and where the formula comes from.
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Coolmath: Compound Interest 2
This Algebra Cruncher generates an endless number of practice problems for money and compound interest with solutions! Find how long it will take for a given amount of money to grow to a final amount.