What is magician?

Magician is a Ruby toolkit that adds quick math and statistics functions you can use directly in your interactive Ruby console (irb). Instead of writing out complex formulas or importing heavy libraries, you can do simple calculations by calling convenient methods on numbers and lists. For example, if you have a list of numbers like [1, 2, 3], you can instantly get the sum with .sum, the average with .mean, or find how spread out they are with .range. For single numbers, you can check if they're prime, find all their factors, calculate a factorial, or test divisibility. The toolkit also handles less common math operations like checking if three numbers form a Pythagorean triplet, solving quadratic equations, or calculating combinations. The appeal is simplicity and speed. If you're experimenting with data, testing math logic, or just need a quick calculation while working in the Ruby console, these methods let you do it without leaving your workflow or setting up a separate math program. It's designed for people who spend time in irb and want a faster way to explore numbers. However, the project is now marked as deprecated. The author recommends moving to more established tools like Octave if you need serious math capabilities. This matters because Magician is no longer actively maintained or supported, so while it might work for quick one-off calculations, it's not a foundation you'd want to build a project on. If you're doing real data analysis, statistical work, or complex computations, you'd be better served by dedicated math software.