Calculate the prime numbers between any two limits. It uses a deterministic test and uses the Sieve of Eratophenes logic. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+. Only 99¢ per month.

Calculate the factors of any number with a single click. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Recommended on The Math Forum @ Drexel (University) for Middle School, High School and College, ages 6+.

The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.

Archim is a program for drawing the graphs of all kinds of functions. You can define a graph explicitly and parametrically, in polar and spherical coordinates, on a plane and in space (surface). Archim will be useful for teachers and students.

Calculator for statistic, function plottting, vectors, matrices, complex numbers, coordinates, intersections. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated.

Universal unit converter and dictionary with a database that contain over 1000 units. From Biblical to Astronomical. User defined simple and compound units.

Equations is an advanced equations editor with support for over 700 symbols and LaTeX/Visual editing. Can be used as standalone or together with MS Office, OpenOffice, WordPerfect Office, etc.

A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.

2D/3D technical graphics plotting and data analysis software for your plotting needs. Curve fitting, FFT and a presentation software! Download a demo of our analysis and plotting software!

Java based math course includes theoretical concepts, hands-on examples featuring animated graphics and live formulas, problem-solving lessons, and customizable real time tests with solutions and evaluations.