| The scientific calculator: This is the calculator of choice if you are a student of mathematics. There is more than meets the eye, be sure to check the calculator's instruction manual and the blog updates. | 
|
| The statistics calculator: Lots of tools for students of statistics, the ever expanding list includes plotting box charts, linear regression, standard deviation and more... | 
|
| The calculator with tape: A calculator for elementary arithmetic operations that displays operations and results on a virtual paper roll. | 
|
|
The percentage calculator: Calculate percentages and percent increase and decrease with this online percentage calculator.
|
|
| The simple calculator: This flash simple calculator implements the 4 basic functions: addition, subtraction, multiplication and division. |  |
| The RPN calculator: Reverse Polish Notation makes entering complex formulas in a calculator easier, but it takes some practice. Try it on this javascript based calculator. |  |
| The Abacuses: Javascript is used to emulate the functionality of the abacus on your computer. Try the Chinese and Japanese abaci here. | 
|
| Bitcoin mining calculator: If you are planning to start mining for bitcoins, this calculator may be a useful tool to evaluate your approximate average costs and returns. | 
|
|
Simple Math Calculators: Students of mathematics may find some of these calculators useful for checking their homework...
|
