Here are a list of links provided to help with mathematics work.:
You will need JAVA to use most of these. if you do not have JAVA, you will have to find a tutorial.

ARITHMETIC & APPLIED MATHEMATICS

Karl's Mortgage calculator
Math.com Basic Calculator (features addition, subtraction, multiplication, division,)
Math.com Scientific calculator (all basic features, plus logarithms, factorial, square roots, trigonometry, and inverse trigonometry)
Mike Chorny's Calculator (features addition, subtraction, multiplication, division, trigonometry, square roots and power)
Decimal to Fraction Converter (Math.com)
Equation Plotter (Math.com) (Input an equation and it is plotted on an x-y graph with any scale you like)
Equation Solver (Math.com) (Solves equations)
Factor (Math.com) (Factors a polynomial)
Function Plotter (Math.com) (Input an equation and its graph is plotted on an x-y grid)
Number Base Converter (Math.com) (Converts between any 2 number bases - Valuable resource for computer science)
Percentage calculator (Math.com)
Prime Numbers (Math.com) - Is it a prime number?
Quadratic equation solver (Math.com) (Solve a quadratic equation in the form Ax² + Bx + C = 0
Savings Calculator (Math.com)  Takes a lump sum of money and compounds it monthly over a fixed period of time at a fixed annual yield. Plus it allows you to add                                                      monthly contributions.
Math.com Square Roots

TRIGONOMETRY
Sine Calculator (Math.com) (If you have the opposite and hypoteneuse angles)
Cos Calculator (Math.com) (If you have the adjacent and hypotenuese angle)
Tan Calculator (Math.com) (If you have the opposite and adjacent angles)


ALGEBRA & GEOMETRY
Math.com Circle Solver Given one of either area, diameter, or circumference of a circle, find the other two.
Dot Product
Equation System Solver (courtesy of Dr Herzog at Penn State U) - Solve a system of n equations in n unknowns.
Matrix Determinant (Math.com) - Find the determinant of an n x n matrix.
Matrix Inverse (Math.com) - Find the inverse of  an n x n matrix)


CALCULUS & DIFFERENTIAL EQUATIONS
Differentiation (Math.com)
Integration (Math.com) - Solves indefinite integrals with respect to one variable
Partial Fractions (Math.com) - Finds a partial fractions division. Useful for some integration
Inverse Laplace Transformation (by EEcircle)
Fourier Series (by EEcircle)


PROBABILITY AND STATISTICS
Normal probability calculator (Math.com)
Poisson Distribution (courtesy of Dr Chuck Stanton at Cal State University)