Helpful Calculator

Supports basic functions and also:

1) Solve a quadratic equation by telling it a, b and c.
2) Trigonometry.
3) Find the equation of a line using one point and a gradient.
4) Find the equation of a line using two points that lie on that line.
5) Find the nth term of an sequence of numbers where there is a constant difference between each term.
6) Construct Pascal's triangle.
7) Do binomial expansions.

More coming soon! Currently working on a graphical calculator rather than a verb based one.